Tag Archives: Soldier Beetle

Cranberry Lake Park: Golden Meadows Host Migrators…and Last Minute Mating!

The golden Eastern Meadow at Cranberry Lake Park in early September

Goldenrod! A variety of different Goldenrods gild Cranberry Lake Park in early autumn. Their bounty of nectar and pollen and the insects they attract make Cranberry Lake an ideal stopover for migrating birds and butterflies as they prepare for their long journeys. So cheer for Goldenrods as they feed wildlife, but don’t blame them for your fall allergies – blame ragweed!

Text and photos
by Cam Mannino

Year ’round birds and summer residents have almost finished molting and are also stocking up energy for winter or the migration. And a surprising number of insects are also preparing by busily mating one last time, leaving behind eggs or chrysalises that can bring forth young next spring and summer. Lots going on within this carpet of gold!

Migrating Birds –  Some Stayed All Summer; Some Just Stop Briefly for Rest & Refueling

Now’s the time to train your binoculars on any shaking leaf you see. It might be a fall migrator! Colorful, tiny warblers and vireos that are just passing through on their way south are well worth a pause to look into the shrubbery, as you’ll see below! But don’t forget to wish “bon voyage” to the migrators who arrived last spring and sojourned with us all summer. Many are finishing up their molts and readying for long journeys to the southern US or even Central and South America. We saw all of the birds shown below on the bird walk last week at Cranberry Lake Park.

Migrators from Farther North:  Just Passing Through

The trees are aquiver with fall migrators, travelers that bred up north and only briefly stop to rest and refuel around our woods and meadows. The most colorful ones that we often hear but can’t see are warblers and vireos. These little birds travel on the night wind because it’s safer. Hawks, eagles, and other birds that might see these small birds as food migrate during the day so that they can ride the thermals!

My camera and I are not quite quick enough to catch a lot of these tiny, fast-moving birds. So to share them with you, I’m relying on photos of other photographers with the skills, equipment and sometimes sheer luck to capture these little beauties!

The Blue-winged Warbler (Vermivora cyanoptera) breeds at Cranberry Lake Park, but the birds we’ve seen in the last week were probably moving through from further north. This fine bird shows off its black eyeline and blue wings with white wingbars in a gorgeous photo taken by gifted local photographer Joan Bonin:

Blue-winged Warbler (Vermivora cyanoptera) by Joan Bonin

This photo of the striking Black-throated Blue Warbler (Setophaga caerulescens) is by gifted iNaturalist photographer Jeff Skrent at iNaturalist.org.

A Black-throated Blue Warbler, photo by Jeff Skrent (CC BY-NC)

Yellow-throated Vireo  ( Vireo flavifronsfrom another generous iNaturalist photographer who uses the single name, paloma.

A Yellow-throated Vireo by paloma (CC BY-NC)

Nashville Warbler (Leiothlypis ruficapilla) was also too quick for me.  But here’s one I did manage to catch as it passed through in the autumn of 2016 on its way to Central America.

The Nashville Warbler on its way to Central America

Summer Visitors: The Migrators that Come Here to Raise Their Young

Some avian migrators see our parks as a great place to raise their young, so they come in the spring and stay for the summer. Having finished breeding and molting, they are now preparing to leave for points south. The male Common Yellowthroat’s  (Geothlypis trichas) “Witchedy – witchedy” song accompanied me often during the summer months as he and his mate raised their young. But you may here his “chuck” call as he hops among the branches stocking up on insect protein before leaving for Florida.

The Common Yellowthroat stops singing its “witchedy-witchedy” song in the fall and prepares to migrate.

Both the male Common Yellowthroat and his mate did a complete molt in July or August and now have fresh feathers for the trip. She’s bit more secretive than the male as she feeds on beetles, ants, bees (!), dragonflies and  grasshoppers within the golden fields. Usually she’ll leave a week or two later than the male.

The female Common Yellowthroat will be around a bit longer than her mate.

Last spring the Wednesday morning birders heard a Black-throated Green Warbler (Setophaga virens) singing its mating song along the Hickory Lane at Cranberry Lake. And this week, the birders spotted one flitting high in the trees. Perhaps it nested here to raise its young, or it could be just passing through our parks in spring and fall. Here’s  a photo I took of a male during the spring migration this year.

The Black-throated Green Warbler may have nested here this summer or he may be just passing through both in the spring and fall.

High in a snag, a Cedar Waxwing (Bombycilla cedrorum) paused briefly to survey the golden eastern meadow one afternoon. Many waxwings go into lower Canada to breed, but I’ve seen successful nests in our parks, too, so this one may have been a summer resident. Some will move south for the winter, but many waxwings will stick around during the cold months.

his Cedar Waxwing may have spent the summer with us or could be migrating south from Canada.

House Wrens (Troglodytes aedon) become quite secretive after breeding. But this one popped out of the greenery for a minute. It appears to have completed the late summer molt and is prepared to start south between now and mid-October.

The House Wren has raised its young here, molted and will be leaving shortly for Florida and other southern states.

A curious juvenile Field Sparrow (Spizella pusilla) peeked at me from dense shrubbery along the trail, too.  The migration of Field Sparrows is not always predictable. Some migrate, some don’t, and some migrate one year but not the next, according to the Stokes’ Guide to Bird Behavior (Vol.2). If this one does migrate, it may join a large flock with Chipping Sparrows as well as other Field Sparrows.

If this Field Sparrow chooses to migrate this year, it will probably join a larger flock. Or it may just stay put!

On one of my Cranberry walks, I spotted some Wood Ducks  (Aix sponsa) far across a well-hidden wetland. They were males who’d chosen this secluded spot to begin their molt out of the summer “eclipse plumage” into their fancy choosing-a-mate plumage. This one looked a bit rough at the moment, but well on his way to his courting colors. As I explained in last week’s molting blog, males molt earlier in the summer to camouflage themselves as females and then molt again in the fall, a time when they compete for a mate to breed with in the spring.

A male Wood Duck almost finished with the molt from his “eclipse plumage” to his courting feathers.

I often hear, but rarely see,  the vireos at Cranberry Lake. But I did get to see a Warbling Vireo (Vireo gilvus) in the spring. A rare treat, since it loves to sing high in the treetops! Its plumage is modest but its song is impressive!  The birders saw one lingering in our park for a while before departing for points south.

Warbling Vireos are often heard high in the trees, but not as commonly seen.

Occasionally I get a quick look at a Red-eyed Vireo (Vireo olivaceus). But Bob Bonin, Joan’s husband and another gifted photographer, got a much better photo than I have so far! This week it too was hanging out with other migrators.

Red-eyed Vireo – photo by local photographer Bob Bonin

Butterfly Migrators

Birds, of course, are not the only creatures migrating through our parks this autumn. Monarch Butterflies (Danaus plexippus) fluttered everywhere at Cranberry Lake Park in the last few weeks.  This “super-generation” of  fragile creatures – the ones that will fly 3,000 miles to Mexico – were swooping and diving over the meadows at Cranberry Lake, feeding on the acres of Goldenrod. So glad that we provide these master migrators with such a feast!

A female Monarch using it proboscis like a straw to sip nectar from Canada Goldenrod.

The tattered Giant Swallowtail (Papilio cresphontes) below looks lightly worn.  Let’s hope that attests to its having mated here this summer after its migration to Cranberry Lake.  These huge butterflies seem to be expanding their range north. Possibly due to climate change, Michigan now often has frost-free Septembers. So if mating was successful, the caterpillars of this very large butterfly may survive inside their chrysalises and hatch in our parks next spring.

This Giant Swallowtail looks a bit tattered at the end of a summer at Cranberry Lake Park. Due to mating? Maybe.

Last Chance for Progeny!  Insects Still Mating in the Meadows

Among the Goldenrod, insects seek out mates in a last ditch effort to leave offspring for next summer. A pair of Goldenrod Soldier Beetles (Chauliognathus pennsylvanicus) rendezvoused on a Bull Thistle  (Cirsium vulgare) – a potentially risky place to mate since a bird might think they make a tasty contrast against the blossom!

Goldenrod Soldier beetles mating on a Bull Thistle

A pair of tiny Pearl Crescent butterflies (Phyciodes tharos) also decided that a warm September afternoon provided the ideal time for mating.

A pair of Pearl Crescent butterflies mating in eastern meadow at Cranberry Lake Park.

And two Ladybugs chased around a Goldenrod stem, one frenetically holding on to the other. I couldn’t really determine whether they were mating or fighting! Clearly, one was more interested in escape and one was in hot pursuit. They were moving too fast for a great shot or a definite identification. My guess is that they were the invasive Asian Ladybugs (Harmonia axyridis). Unfortunately they are more common these days than our native Nine-spotted Ladybug (Coccinella novemnotata) and come in highly variable colors and patterns.

Two ladybugs chased each other around a Goldenrod stem – mating or aggression?

This tiny Red-legged Grasshopper (Melanoplus femurrubrum) had probably spent the night near the stalk of the Common Milkweed (Asclepias syriaca), wisely hidden from predators among its withering leaves. It will molt multiple times before mating and leaving eggs in the soil to emerge next summer.

A Red-legged grasshopper nymph probably spent the night within this Common Milkweed plant.

The edge of a meadow, near a wetland, might be an ideal spot for a female Great Blue Skimmmer dragonfly (Libellula vibrans). She could be spreading her wings in hope of attracting a mate. If successful, the aquatic plants nearby could host her fertilized eggs. Or while waiting for a likely male, she might just have a great perch for hunting unsuspecting prey!

A female Great Blue Skimmer sunned herself on a cool morning, possibly trying to attract a mate – or just hunting for the next unwary insect!

Spider Art On a Misty Morning

Early fall mornings are an excellent time to appreciate the art of the spiders. Warm days followed by cool nights leave heavy dew on spider webs, and when the sun makes them visible, they are dazzling. How about this lovely creation of an Orb Weaver spider (family Araneidae) drooping with the weight of the dew but subtly reflecting the colors of the sun’s spectrum!

The sun reflecting on the dew in an Orb Weaver’s web.

Another intriguing web, though not as beautiful, is cleverly constructed.  The Funnel Web Spider (Circuria species) lays a sticky sheet of web across the grass, which would be difficult to see were it not for the dew. At the edge of the web, it weaves a tunnel where it lies in wait for unsuspecting prey.  Above the sheet, it weaves an irregular network of silk designed to knock flying insects into its sticky net below. You can see the funnel at the back of this web below.

The Funnel Web Spider’s trap for flying insects with a nifty funnel in which the spider can wait for its prey unseen.

Frogs Underfoot!

As I skirted the edge of wetlands one Sunday, it seemed that a frog sprang out of the grass at every step! Most of them were Northern Leopard Frogs (Rana pipiens), their emerald green backs covered with circular black dots outlined in pale gold. Their dark eyes encircled with gold add to their glamour. Pinkish dorsolateral ridges are another distinguishing field mark. They shine like cloisonné in the deep grass!

Leopard frogs big and small sprung out of the grass near wetlands.

Until last week, I’d never noticed Pickerel Frogs (Rana palustris) at Cranberry Lake. These smaller frogs have somewhat rectangular spots that line up along the frogs’ back in neat rows. They are smaller than Leopard frogs. They tend to be brown (though they are sometimes green too), so I’m fairly sure this is Pickerel frog below.

Pickerel Frogs have more rectangular spots in rows down their backs, rather than the more random round spots of Leopard Frogs. So I think this is Pickerel frog, but I’m not positive!

And Finally, the Native Plants that Make It All Possible!

The plants, though not as often noticed by hikers, provide sustenance for all these creatures as the base of the food web. Butterflies sip their nectar. Bees and wasps feed pollen to their young. Other insects munch on leaves or make winter homes in the stalks. Birds, reptiles, amphibians, and mammals eat all parts of plants, or the insects that live on them. So here’s a gallery of  just a few of the plants that, along with the plentiful goldenrods, have bloomed in sun and shade to sustain the beauty and life of Cranberry Lake Park in late summer. (Use pause button for captions.)

This slideshow requires JavaScript.

Autumn Mornings:  Not To Be Missed!

Mist rising in a meadow beyond the trees.

On our September bird walk at Cranberry Lake Park, we arrived on a cool fall morning. The previous day had been unseasonably warm, but a north wind sailed in overnight. The cool air had created heavy dew, leaving silver droplets that set the spider webs shining. The morning sun on the moist leaves created the fine mist you see above, rising  from a meadow beyond the Hickory Lane. What a sight! – the makings of future clouds floating like silver smoke above the wildflowers. A wave of migratory warblers and other small birds had arrived on that night wind. The birders watched, binoculars up, as these travelers hopped busily in the branches, feeding on the plenty of insects attracted by fields full of blooming fall wildflowers. And all of this beauty is gratuitous – unearned, just gifted to us if we just put on our shoes and head out the door! Consider escaping from the busy-ness of life for just an hour this week. Let these beautiful fall days lure you to the parks and savor the gifts that nature so generously offers to all of us.

THIS WEEK AT BEAR CREEK: The Drama of Drought and Downpours

Western Slope BC August
Goldenrod gilds the Old Fields of Bear Creek in late August.
Cam walking into BC
Blog posts and photos by Cam Mannino

Late summer is always a time of transitions, but this year was particularly dramatic. Bear Creek’s meadows baked for weeks under a blazing sun. The marsh dried completely, stranding an over-heated young  snapper that struggled through a tangled mat of exposed vegetation. Heat finished off blossoms as some wildflowers began to seed earlier than usual. And then in mid-August, the rains came – downpours, thunderstorms and off-and-on showers. You could almost hear the gulping of plants and trees swallowing the moisture through their roots. Snappers again cruised just below the shallow waters of the marsh. Life rallied.  As always, nature just coped and moved on.

Life in the Hot Sun of the Old Fields

The Old Field on the western edge of Bear Creek is quieter now. Mating season has ended (except for the Goldfinches), so birdsong has diminished. But one hot, sticky morning, an Indigo Bunting (Passerina cyanea) threw back his head and let loose his double-phrased song from the highest branch of a tree – a favorite perch for male Buntings.

Indigo Bunting singing BC
An Indigo Bunting releases its song from the tallest branch of a tree on the Western Slope.

An Eastern Phoebe (Sayornis phoebe) seemed to be listening to its neighbor as it rested between forays over the baking meadows, trying  to snatch a few unsuspecting insects.

Phoebe BC
Nearby, an Eastern Phoebe listened as the Indigo Bunting sang.

A juvenile Yellow-bellied Flycatcher (Empidonax flaviventris) posed quietly among the branches of smaller trees on the Western Slope. Expert birder, Ruth Glass, tells me that this little bird probably arrived from Canada or northern Michigan and is now migrating down to the Caribbean. Quite an adventure for a small bird!

Eastern Wood-peewee
A juvenile Yellow-bellied Flycatcher near the Western Slope.

Near the moist bottom of the slope one steamy morning, I spotted a lump on a leaf.  A newly metamorphosed Gray Tree Frog (Hyla versicolor) was sleeping on a Common Milkweed (Asclepias syriaca). I’m afraid I woke it with my camera. The U of M’s Bio-kids website says they are “almost always bright green right after metamorphosis [from tadpole stage] and they stay this way for some time before taking on their adult coloration.” These frogs can sleep in the open during the day, using their camouflage to protect themselves; they don’t dehydrate quickly like other frogs. Isn’t it just the best little creature?

Gray treefrog baby BC
A newly metamorphosed baby Gray Tree Frog on a milkweed leaf

While birds foraged from the trees, the insects below braved the blazing sun  to look for their own sustenance. In the grass on the Western Slope, a Common Buckeye butterfly (Junonia coenia) seemed to searching the bottom of grass stems. I’ve read that they sip nectar but often look for fluids in moist earth. Perhaps it was hoping for dew on a hot morning in August.

Common Buckeye butterfly-2
A Common Buckeye butterfly perhaps searching for moisture in the grass on the Western Slope.

Higher up on the western path, where the land was drier, beetles probed blossoms looking for food. On the left, a non-native Seven-spotted Ladybug (Coccinella setempunctata) searched diligently for aphids, a favorite food. In fact, these beetles were brought here to combat aphids, but as a result, they’ve outcompeted our native ladybugs whose numbers have declined. On the right, a Soldier Beetle (family Cantharidae) may also be pursuing aphids, though it also eats pollen and nectar. (Hover cursor for captions; click on photo to enlarge.)

In the trees near the top of the Western Slope, a sparrow fluffed its feathers in thin shade. It’s hard to identify juvenile sparrows but with its pink feet and bill, I’m guessing this is a juvenile Field Sparrow who hasn’t yet reached full adult plumage when it will have a more distinct eye ring and a clear breast.

Field Sparrow BC
A Field Sparrow has a pink bill and pink feet so I’m guessing this is a juvenile whose breast plumage is still changing.

American Goldfinches mate in August, much later than other birds. On one hot visit,  a female repeatedly rode drying blossoms of Queen Anne’s Lace down to the ground to forage for seeds, perhaps to feed her young –  or her hard-working self! Unlike many seed-eating birds, the Goldfinches don’t switch to bugs when breeding. They are strictly vegetarian.

Goldfinch riding Queen Anne's Lace
A female Goldfinch repeatedly rode a Queen Anne’s Lace to the ground to harvest its seeds.

Nestlings of other birds are transforming into curious fledglings. One afternoon, a young, female Eastern Bluebird (Sialia sialis) perched high in a snag (standing dead tree), her spotted breast only halfway transformed into adult plumage.

Bluebird juvenile molting BC
A young female Bluebird molts the speckled breast feathers of a fledgling into adult plumage.

Wildflowers felt the impact of the fierce sunlight. A Jewel Weed blossom near the pond dried in the heat, while others took its place in the dappled shade.  And up on the top of the southern hill, the Yellow Coneflowers (Ratibida pinnata) dropped their petals and began the seeding process in the dry heat.

Sturdy Prairie Dock blossoms, looking like little suns themselves,  began to dry out as well as they towered over the wilting Coneflowers.

Prairie Dock in BC Native Garden
Native Prairie Dock seems to mimic the bright sun it prefers.

A female Black Swallowtail hovered just off the sun-drenched Eastern Path, looking restlessly for just the right blossom. Folding its dark wings may help it cope with the sun’s heat.

Black Swallowtail female
A female Black Swallowtail butterfly off the edge of the Eastern Path

Patrolling for food, a Ruby Meadowhawk dragonfly rested momentarily  on a leaf, its clear wings shimmering in the hot sunlight.

Ruby Meadowhawk BC
A Ruby Meadowhawk paused on a leaf while patrolling the fields for smaller insects

The northeastern edge of the Old Fields evidently stayed moist despite the  heat and several “wet-footed” plants took full advantage of the bright sunlight.  Joe-Pye (Eutrochium maculatum) spread its dusty pink blooms out across the field instead of appearing as widely distributed single plants as it often does here.

Joe Pye Eastern Path
Joe-Pye flourishes off the Eastern Path.

Other native wetland plants fringed the same area.  The trio below includes bright pink Swamp Milkweed (Asclepias incarnata) with its green stems, Joe-Pye with dusty pink blossoms and purple stems and Boneset (Eupatorium perfoliatum) with its white blossoms and leathery leaves. 

Swamp Milkweed Boneset Cat-tails BC
A fringe of native flowers edges the wetland off the Eastern Path

Below center, the native Bumblebee (genus Bombus) sips nectar from the Swamp Milkweed with its long tongue and on the left, is a closer look at Boneset. Odd name, eh?  Evidently early herbalists noticed the way the stem seemed to rise right through the clinging leaves reminding them of a splint around a bone. So its leaves were wrapped with bandages around broken bones. Native Flowering Spurge (Euphorbia corollata) on the right also thrives here as it does in various spots along the Paint Creek Trail.

Sheltering in the Shade

Near the wood edges, I found mammals and insects enjoying the shade.  Following a shining strand hanging before our eyes, my husband and I discovered a very tiny white spider escaping the bright sunlight on the underside of a leaf. I tried but couldn’t identify it, despite that wonderful design on its abdomen. We wondered if that brown ball was an egg sack. Anyone know this tiny creature’s name?

White spider under leaf
A tiny white spider, unidentified, sought the shade on the underside of a leaf next to what may be an egg sack.

And, as usual, damselflies moved in and out of the shade at the edge of the Oak-Hickory forest. I’m guessing,  based on its bright blue head, striped thorax, and very pale abdomen, that this one may be a female Bluet (genus  Enallagma) or a recently hatched one. But since there are at least 17 species of Bluets in the Midwest, I’m not sure which one this is. Again, I’m open to your ideas.

damselfly
Probably a species of the Bluet Damselfly pausing in the shade at the edge of the woods.

A White-Tailed Deer (Odocoileus virginianus) sat calmly on the shady site of a dried vernal pool, while her fawn dutifully hurried off into the bushes as I paused for the photo.

Deer in dry vernal pool BC
A doe whose fawn hurried off into the bushes when I appeared with my camera.

And an Eastern Cottontail paused in a shady spot along a trail one hot morning as well.

Eastern cottontail rabbit bc
An Eastern Cottontail rests in a shady spot on a hot morning.

And Then the Rains Came…

What a relief when heavy rain came to refill the wetlands and ponds at Bear Creek Park! After watching  that young Snapping Turtle (Chelydra serpentina) struggling through vegetation in the dry marsh, it was a relief to see two Snappers feeding and cruising just below the surface in the cooling water provided by the rain.

 

The bright sun and rain caused Common Duckweed (Lemna minor) and Water Meal (genus Wolffia) – often mistaken for heavy algae – to form thicker mats across wetlands around the park. At the Playground Pond, I heard a plop! one afternoon and saw just the head of a Muskrat (Ondatra zibethicus) moving through the juicy green surface. Luckily, its ears close when it enters the water! When swimming, it uses its tail to propel itself with the help of its webbed back feet.

muskrat at playground pond
A muskrat keeping its head above the thick mat of duckweed in the Playground Pond.

Once the Muskrat dove, I noticed other denizens of the Pond nicely camouflaged in duckweed and water meal as well.  Here are two turtles and a frog on a log decked out in greenery.

2 turtles and frog playground pond
Two turtles and a frog covered in duckweed after the rains came

Quivering in the duckweed near the boardwalk made me look down to see a whole collection of small Green Frogs (Rana clamitans). Each of those individual spots on the leg  of the frog below is a water meal plant! Ducks do love this plant, by the way.  Sometimes they just dip their bills in and move along, scooping it up.

Green Frog Playground Pond_
A Green Frog in the Playground Pond covered with Duckweed – not algae.

In the wetland just north of the Playground Pond, a particularly beautiful native plant is blooming in the moist shade, Cardinal Flower or Red Lobelia (Lobelia cardinalis). Last week when I took an out-of-town friend to the park and left my camera at home,  we watched a Ruby-throated Hummingbird (Archilochus colubris) sipping at a tall stalk of this scarlet beauty. I came back for its photo the following day – but no Hummingbird then, I’m sorry to say!

Cardinal flower single
Hummingbirds can be seen feeding at Cardinal Flower in the wetland just north of the playground.

We also spotted two Barn Swallows  perched quietly in nearby trees. No camera again! The next day, they were swooping madly across the meadows, their bills open, enjoying the swarms of insects that had hatched after the rain. One perched for a moment in a snag over the wetland and I got this quick photo of it from below.

Barn Swallow BC
A Barn Swallow resting between swoops over the open fields to eat insects hatched after the rain

As the water rose in the Center Pond, tiny  Painted Turtles (Chrysemys picta) appeared on nearly every log. Here’s a silver-dollar-sized one trundling along as it explores its world like any youngster.

baby painted turtle
A silver-dollar-sized Painted Turtle strikes out on its own after the rain.

This week, a Green Heron (Butorides virescens) dropped into the bushes at the western edge of the pond. It kept a close eye on the water, when it wasn’t actively preening with its long, extendable neck. Green Herons are expert hunters of both fish and frogs.  I wondered if the absence of July’s huge number of green frogs was attributable to the drought or this multi-colored fisher. (My apologies for the slightly pixelated photos caused by aggressive cropping so we could see it up close.)

Yes, it’s been a hot, sticky and then rainy summer. But we’re all in this together – animals, birds and plants. The natural world provided a gentle reminder that change, even dramatic change, is an inherent part of being alive. Summer may be waning now but the beauty around us isn’t. Surprises await our arrival every day, no matter what the weather.

 P.S.  More Native Beauties Blooming along the Paint Creek Trail!

The trick about blogging during the summer is that so much happens all over the township, all at once!  Keep an eye out for these special native wildflowers blooming for just a short time in the Wet Prairie on the Paint Creek Trail. The shallow water table in this meadow provides a perfect spot for these fire-adapted beauties. The field is dotted with the purple fireworks of Cylindrical Blazing Star (Liatris cylindracea), the striped elegance of Grass of Parnassus (Parnassia glauca) and the delicate, spotted petals of Mountain Mint (Pycnanthemum virginianum). Don’t miss them!

Footnote:  My sources for information are as follows: Ritland, D. B., & Brower, L. P. (1991); Stokes Nature Guides: A Guide to Bird Behavior Volumes 1-3, Allaboutbirds.org, the website of the Cornell Ornithology Lab at Cornell University; Wikipedia; http://www.butterfliesandmoths.org; Herbarium of the University of Michigan at michiganflora.net; various Michigan Field Guides by Stan Tekiela; Butterflies of Michigan Field Guide by Jaret C. Daniels; University of Wisconsin's Bug Lady at www4.uwm.edu/fieldstation/naturalhistory/bugoftheweek/ for insect info; http://www.migrationresearch.org/mbo/id/rbgr.html for migration info; invaluable wildflower identification from local expert, Maryann Whitman; experienced birder Ruth Glass, bird walk leader at Stoney Creek Metro Park for bird identification; Birds of North America Online; Audubon.org; Nature in Winter by Donald Stokes, Trees in My Forest by Bernd Heinrich, Winter World by Bernd Heinrich, Savannah River Ecology Lab (Univ of Georgia); Tortoise Trust website www.tortoisetrust.org;  An Orchard Invisible: A Natural History of Seeds by Jonathan Silvertown; The Ecology of Plants by Gurevitch, Scheiner and Fox; other sites as cited in the text.