Tag Archives: Baltimore Checkerspot

Back to Bear Creek: Surprise! Unusual Sightings of Birds, Bugs and More

Native Golden Alexanders and Spiderwort blooming in the circle of the parking lot at Bear Creek
Blog Post & Photos by Cam Mannino

The last two weeks at Bear Creek gifted me with some exciting moments – seeing previously unseen birds, witnessing unusual nesting behavior, watching a turtle struggling to bury her eggs and being surprised by a little butterfly I hadn’t seen for years. So though the blog just visited Bear Creek two weeks ago, I wanted to share the bounty I’m enjoying before the season changes much.

Unusual Birds and the Usual Ones Doing Interesting Things!

As many of you know, I’ve been walking in Bear Creek for 25 years and I’ve watched for owls all that time. They spend their days sleeping right next to tree trunks on high limbs, and despite craning my neck for years, I’d never spotted one. But on the first June bird walk, a fellow birder, Bob Bonin,  spotted one high up in a tree near Bear Creek Marsh. Huge, silhouetted against the morning sky, this Great Horned Owl (Bubo virginianus) wasn’t easy to see, much less photograph. But luckily, I got a few shots before he gave the group an annoyed look, lifted his huge body with his massive wings and flew away. Such a thrill! (Click on arrows for slideshow; use pause button for a closer look.)

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A bit earlier that morning, we saw an unusual bird at the other end of the size spectrum. A male Ruby-throated Hummingbird (Archilochus colubris) perched high on a snag behind the Center Pond and turned his iridescent green back to the morning sun. We saw a quick orange flash at his throat but I missed it. The Stokes Guide to Bird Behavior (Vol. I) indicates that males’ throats look brown or black if the light doesn’t hit their necks just right. When I returned on a late afternoon, there he was on the same snag – but this time the afternoon sun caught the edge of his throat which shone gold rather than ruby red. He’s not the most glamorous hummer, but I’m glad I got to see a bit of his gleam.

This male hummingbird’s bright throat only shone for a second in the morning sun, so I settled for the light in his eye and his iridescent green back.
The same male hummer’s throat shone gold in the late afternoon sun.

Near the Center Pond, the birders also discovered the nest of a Rose-breasted Grosbeak (Pheucticus ludovicianus) – with the male sitting calmly, tending the eggs or nestlings. Occasionally, he even sang his lovely tune as he waited patiently. I’d read in the Stokes Guides that male Grosbeaks sometime take on this responsibility, but I’d never seen it. On three separate visits, the male was the only one on this nest – though the female may have relieved him at other times. So, Happy Father’s Day to this dedicated Grosbeak dad!

Male Rose-breasted Grosbeak tending the fledglings
A slightly tired looking male Grosbeak remains near the nest after nest tending

In a willow to the right of the deck in the Center Pond is a beautiful nest.  It’s cleverly attached between two vertical branches about 20 feet up, ingeniously woven and quite large – maybe 9 inches long. During my first 3 visits, only the female’s black tail cocked behind her was visible from the observation deck. Finally one afternoon, I waded into the grass at the pond’s edge and  caught sight of her hindquarters as she fed her young. And then, I saw a fledgling’s head just above the edge of the nest. Ah, this nest was constructed by a female Red-winged Blackbird (Agelaius phoeniceus) – a somewhat eccentric one since Red-wings normally build close to the water and weave their nests among cat-tails or reeds. She’s quite an architect! The location of this elaborate nest makes it nearly invisible and unreachable by predators. Clever mama Red-wing!

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Two nests appeared high in a tree on the Walnut Lane. The barely visible, masked eye of the female Cedar Waxwing (Bombycilla cedrorum) peeked through the leaves that camouflaged the first nest spotted by the birders. Since she sat there quietly every time I visited, I’ve included a photo of a Waxwing from a previous year so you’ll  remember how elegant this conscientious mother bird truly is!

Only the masked eye of the female Cedar Waxwing shows above the edge of her cleverly hidden nest along the Walnut Lane.

 

An adult Cedar Waxwing. The two red dots on the wing gave it its name.

Across the Walnut Lane, the birders also discovered the nest of a female Eastern Kingbird (Tyrannus tyrannus) who spent several days building her gauzy, somewhat more loosely constructed nest. She proudly stood above it a few days later as it neared completion. The female Kingbird constructs the nest and keeps the male off it until the eggs hatch. Then both parents feed the nestlings. But even during the egg phase, the male stays on a branch nearby to defend the territory for his mate and young.

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Another good provider, a tiny male Yellow Warbler (Setophaga petechia) brought a bright green caterpillar to feed his nestlings or mate. In between feeding trips, he’d let loose with his proud song, “Sweet, sweet, I’m a little sweet.” Impressive dad who can bring home the bugs, singing all the while! Bet the female warbler was as impressed as I was.

A Yellow Warbler feeds his mate or young  a bright green caterpillar and sings in between feedings.

An Orchard Oriole male (Icterus spurius) serenaded us from a small tree in the middle of a meadow. His long, melodious song sounded much like the third song recorded at this link.  A few Orchard Orioles seem to come to Bear Creek each year – but they migrate south by mid-July. So keep an eye out and an ear cocked soon in the meadows to the east of the Walnut Lane!

A male Orchard Oriole singing with gusto in the meadow beneath the seating area in the southern end of the park

An invisible bird, high up in the tree tops, repeated its melodious warble continuously one warm morning. I’ve never seen a Warbling Vireo (Vireo gilvus); they rarely come down from the heights. But fortunately, a great photographer from the iNaturalist website, Steven Mlodinow, has seen one and generously allows others to borrow his photo. Listen for this warbler’s rich melody all summer long, but don’t be surprised if you never spot this elusive summer resident.

A photo of a Warbling Vireo by gifted photographer, Steven Mlodinow (CC BY-NC) on iNaturalist.org

Little Surprises Near the Wetlands

At the northeast corner of the Center Pond, a young Painted Turtle (Chrysemys picta) hurried to cover her eggs one hot afternoon. She’s found a likely spot where Ben had cleared away invasive shrubs a couple of years ago. As you’ll see in the video below, she work really hard with her back legs to get the dirt to move. She’d no doubt have preferred sandier soil! But she was determined to see the job done!

I’ve seen Northern Leopard Frogs (Lithobates pipiens) periodically at Cranberry Lake but never one at Bear Creek. But hearing their snoring call near a wetland, I waded into tall grass and found this one, hiding among the greenery. Glad to know this beautiful frog is at Bear Creek, too.

A Leopard Frog hiding in tall grass near a wetland.

Ben noticed an  Eastern American Toad (Anaxyrus americanus) toad on the path one afternoon when we went to look at nests.  Normally, I only see brown toads, but Wikipedia informs me that “The color and pattern is somewhat variable, especially for the females. Skin color can change depending on habitat colors, humidity, stress, and temperature…Some toads of this subspecies have a more pervasive red and deep brown color, many with red warts on their bodies.”  So this little toad is probably female and the red description  fits  her pretty well.  I wonder if the unusually hot temperatures had an effect on her appearance?  Hard to tell.

A young Eastern American Toad or a dwarf American Toad near the Center Pond at Bear Creek

Amazing Insects: A Butterfly I’ve Missed for Years, Favorite Dragonflies and the Skills of Tiny Pollinators

Next year, I’ll be looking for the boldly patterned Baltimore Checkerspot butterflies (Euphydryas phaeton) on June 11 or 12. I’ve only seen them on those two dates, 6 years apart! This year, four of them fluttered at a spot in the trail where water runs under the path – a place I’ve often seen other small butterflies feeding on minerals left by the water. Later in the summer, watch for the communal caterpillar webs of these small butterflies (about 2.5 inches) on the host wildflower Turtlehead (Chelone glabra) where these butterflies lay their eggs during the summer and where the caterpillars first feed.

Interestingly, in the fall, Baltimore Checkerspot caterpillars wrap themselves in leaf litter, overwinter and finish developing in the spring. This seems to be a big year for them – so keep an eye out if you see a small, dark butterfly at your feet.

The Baltimore Checkerspot overwinters as a caterpillar.

Different species of dragonflies seem to appear each week to dance among the budding wildflowers and over the pond. The dramatic, yet quite common Twelve-spotted Skimmer (Libellula pulchella) did indeed skim over the tops of grasses in the Eastern Meadow this week. Dragonflies often land, fly, and then come back to the same dry stalk – so if you miss one in your binoculars the first time, wait a moment and you’ll probably see it in the same place again!

Twelve-spotted Skimmer dragonfly BC

A bright green Eastern Pondhawk (Erythemis simplicicollis) dragonfly clung to a grass stem on the western slope. If it’s a male, it will gradually turn blue over the summer. If a female, it will remain green. Probably this one is newly emerged since it’s hunting in a meadow. When it’s ready to mate, it will rendezvous with others  at the Center Pond.

This Eastern Pondhawk is still in the meadow but will go to the pond when it’s time to mate.

A small Dot-tailed Whiteface (Leucorrhinia intacta) dragonfly posed for a face-on selfie at the Playground Pond before continuing its quest to consume as many mosquitoes, flies and other small insects as possible before the day is out. Love its cartoon-like face and the one yellow dot on its tail that give it its name.

Easy to see why this is called a Dot-tailed Whiteface dragonfly, eh?

 

 

 

 

 

 

 

 

 

 

Pollinators are busy all over the park, feeding and carrying the pollen that will bring us next year’s blooms. This may look like a European Honey Bee (Apis mellifera) but Honey Bees are fuzzy all over and this one just isn’t. So it’s more likely to be a Dronefly (Eristalis tenax), a type of Hoverfly (family Syrphidae), which uses its pattern, slight fuzziness and loud hum to mimic male Honey Bees as a way of protecting against predators. Droneflies cannot sting, but a passing dragonfly probably doesn’t take a chance!

Daisy with bee
This dronefly (a kind of hoverfly) mimicks a bee’s appearance and hum for protection.

I noticed what looked at first like a tiny wasp on this umbel of a native Nannyberry bush (Viburnum lentago) near the Center Pond. But after a bit of research in Pollinators of Native Plants by Heather Holm, I’m going to guess it’s a female Leaf-cutter Bee (family Megachilidae). It has a wasp-y pattern and shape and it’s collecting pollen on its abdomen and on the top of its back leg (look at those jodhpurs!). Leaf-cutters cut small, neat circles out of leaves, hence the name. They then roll up a single fertilized egg and a chunk of pollen in each circle, forming a solitary, cigar-shaped nest which is placed in a hole in the soil, wood or other structures. Such an unusual nest!

A leaf-cutter bee pollinating a Nannyberry bush near the Center Pond

Bring a Friend – or Friends! – to Visit Your Favorite Park

Oakland Township Natural Areas manager Ben VanderWeide leads a group of birders at Cranberry Lake Park

I’ve always loved walking alone in the township parks. I can listen to birdsong, stop to look at something tiny like the Little Wood Satyr butterfly below, or enjoy the fresh scents of wood, greenery, the earth after a rain in silence. Solitary walks are contemplative.

A Little Wood Satyr butterfly rests in the shade

But this particular blog testifies to the special pleasures of hiking with interested friends and family. First of all, they just bring more eyes! I’m always seeing things with the birders or with my husband, that I’d never have noticed with just my two eyes (in this case, the owl, the hummer, the oriole, the male grosbeak in his nest and more). But also their curiosity piques mine. They bring specialized interests and knowledge. They often patiently help me find the bird hiding in a leafy tree (“The center trunk at about 2 o’clock…). It’s a different kind of delight to walk with nature-noticing friends. So if all of this nature stuff intrigues you, take some nature-lovers with you on your next walk. Or consider joining our friendly birding group on Wednesday mornings year ’round. We’d love to have you join us! (The schedule is under “Events” at the top of the home page.)

Footnote: My sources for information, besides Oakland Township's Stewardship Manager Ben VanderWeide, are as follows: Pollinators of Native Plants by Heather Holm; Stokes Nature Guides: A Guide to Bird Behavior Volumes 1-3; Allaboutbirds.org, the website of the Cornell Ornithology Lab at Cornell University; Wikipedia;  Herbarium of the University of Michigan at michiganflora.net; various Michigan Field Guides by Stan Tekiela; other sites as cited in the text.

This Week at Bear Creek: Early Summer at Bear Creek – Serenity or Drama, Your Choice

How can anyone resist Bear Creek Nature Park in late June?!

Blog post and photos by Cam Mannino
Blog post and photos by Cam Mannino

Flowers keep offering up more and more color.  Fledglings are trying out their wings and begging their parents for food.  Trees whisper back and forth as the full green leaves of summer rustle and wave, soothing the frayed edges of our lives. But if you’re in the mood for a little excitement, you can always keep an eye out for the little dramas that snakes and other fascinating predators provide.  Some examples:

Find A Little Serenity…

Look at this clear invitation from what I like to call The Lane, the central path in the park lined with Black Walnut trees (Juglans nigra) that I imagine the farmer planted there years ago for nuts, beautiful wood and just their sheer magnificence.

Lane in summer
The central trail in Bear Creek, lined with native Black Walnuts, invites you to wander and explore a summer day.

Up near Gunn Road, there are water trails leading into the marsh where muskrats, ducks, and geese cruise into and out of the reeds in the summer sun.  The curviness of this trail, caught by my husband Reg this week,  makes me think it was made by a muskrat but Ben thinks its width might indicate a goose.  Or maybe a family of ducks?  Anyway, it makes me wish I could follow.

Water trail into the marsh
A trail leads into the marsh where we can’t follow. A muskrat, a goose, a family of ducks? Who knows?

Frog music is part of the charm of a summer day.  The Leopard Frog (Rana pipiens)is out and about now because the breeding season is past and they can wander away from the water.  They are beautiful spotted frogs and for reasons not quite clear, their numbers are falling in Michigan.  So keep an eye out for this emerald green, leopard-spotted frog wherever it’s moist.

leopard frog
The Leopard Frog’s numbers are falling in Michigan. But we do have them at Bear Creek!

The Green Frog Tadpoles (Rana clamitans)in the Center Pond are a-l-l-lmost frogs.  Here’s a nice big fat tadpole with tiny legs that Reg spotted there this week. And the bigger ones in the playground pond are already making their banjo-plucking calls!

tadpole w legs
A Green Frog tadpole in the center pond is developing tiny frog legs.

Insects add a lot of color and grace as they swoop over the meadows and ponds.  Out near the  marsh, you’re likely to see the elegant Widow Skimmers.  Here’s a  male with a black/dark brown band near his body and a white strip farther out on the wing,  but this one is immature.  When he’s fully grown, his abdomen will turn light blue.

Widow Skimmer male
This juvenile male Widow Skimmer has the dark wing band near his body followed by the white band characteristic of males, but his abdomen still has the gold stripes of a juvenile.

The female Widow Skimmer dresses only in somber colors without the white band,  though she shares gold stripes on the abdomen with the juvenile male.

widow skimmer female
The female Widow Skimmer dresses only in somber colors.

A rare sight but one that occurs this time of the year is the appearance of the Baltimore Checkerspot (Euphydryas phaeton), surely the most beautiful of this family of butterflies, called the Brushfoots.  I’ve seen one only once at Bear Creek,  but it was in the third week of June so be on the lookout!  This smaller butterfly (1.75″-2.5″) with orange-tipped antennae is eye-catching from above.

baltimore checkerspot top3
The upper (dorsal) side of the Baltimore Checkerspot is striking against the green grass.

And it’s even more eye-catching on the underside!  See that orange face?

baltimore checkerspot 4
The lower (ventral) side of the Baltimore Checkerspot is even more eye-catching than the upper (dorsal) side! Look at that orange face!

More modest members of the Brushfoot family, but much more common visitors, are the fritillaries.  Here is the smaller one we’re seeing now in June, which I think is the Meadow Fritillary (Boloria bellona), but again, don’t quote me.  (Anyone out there a butterfly expert?)

Meadow Fritillary
The Meadow Fritillary is a smaller, more modest member of the Brushfoot family of butterflies.

Ben tells me that in the woods near the marsh, the fruits of the  Wild Geranium (Geranium maculatum) are now springing open,  flinging out five seeds per plant!  Go geraniums!  While out in the Old Fields of Bear Creek,  native and non-native flowers turn their faces to the sun.  Here’s our native Old Field/Common Cinquefoil (Potentilla simplex) in one of the Native Plant Beds near the shed.

common cinquefoil
Old-Field/Common Cinquefoil is a native wildflower with a very invasive cousin seen below!

And here is its invasive cousin out in the fields, Rough-fruited Cinquefoil (Potentilla recta),  a cultivated version that appears much more often, unfortunately, than our native one!  You’ll see it on the way into the park from Snell Road once you leave the woods.

rough fruited cinquefoil 2
Beware of garden flowers that “naturalize.” What that means is that in the right situation,  they can be invasive like this Rough-Fruited Cinquefoil.

Rough-fruited Cinquefoil’s sharply defined, heart-shaped petals and paler color was no doubt  pretty in its original garden but unfortunately, it  “naturalized,” and is now taking the place of our native Old Field Cinquefoil which is only seen right now in the Native Plant Beds near the shed. Every time that happens, we lose a little of the rich diversity that nature provided us for us here in Oakland Township.

Other invasives aren’t necessarily cultivars,  human-bred plants.  They are  plants from other natural environments that end up here and  get carried away, growing aggressively.  Unfortunately, this applies to the prosaically named but quite pretty  Bladder Campion (Silene vulgarism).  This plant which is actually eaten in certain parts of the world, originated in Eurasia and is now found in Bear Creek on what I call the “Steep Slope Path”  that runs north/south on the western side of the park near Snell.

bladder campion
Bladder Campion, with the descriptive but non-poetic name, is an invasive plant from Eurasia.

However, this little beauty, Deptford Pink (Dianthus armeria), is a Non-Native that exists quite peacefully with our native plants, peeking shyly out among the Big Guys.   There’s some edging their way into the Native Plant Bed in the driveway circle but there’s some to enjoy as well on the path that runs along the west side of the playground pond.

deptford pink
The Deptford Pink is one of those non-native plants that co-exists with our native plants.

Appreciate Nature’s Dramas!

While all this color emerges and the air is filled with bird song, frog music and “tree talk,”  dramas unfold in Bear Creek as well.

Remember those Eastern Raccoons Kits (Procyon lotor) we featured in May?  Well, the mother  (here in a previous year) is in charge of feeding those kits until September.

raccoon in hole
Mother Raccoons need to feed their kits and are on the hunt for turtle and bird eggs, among other foods.

This week Ben saw evidence that part of their current diet is  turtle eggs which the raccoon (or perhaps a fox)  dug out of the soft earth where the turtle had laid them. Here’s the evidence I saw a few years ago.

opened turtle egg
A turtle egg probably dug up by a hungry raccoon or possibly a fox.

A Robin’s egg might be available too, which is one of the reasons, as reported last week, that Robins have 3 broods a year to keep their numbers up! Lovely “robin’s egg blue,” eh?

robin egg
Lots of animals eat bird eggs – squirrels if they happen across them, raccoons, foxes and snakes, though they swallow them whole!

Some interesting, quite harmless  snakes slide through the grass right now, so don’t let them startle you!  They’re much more afraid of you than you of them, believe me!  The small (9-12 inch), shy Brown Snake (Storeria dekayl) , which can be beige, brown or gray, appears now and then in the Bear Creek Old Fields, though it likes to spend most of its time under things – or underground, eating worms and slugs.  I particularly like the lovely tortoise shell pattern on the top of its head and the light stripe along its body accentuated by black markings.

brown snake
The shy Brown Snake with the tortoise shell pattern on its head likes to hide under anything available or simply stay underground!

Another beautiful, harmless but much longer snake (2-4 feet) is the Eastern Milk Snake (Lampropeltis triangulum).  The females lay their eggs right now in June.  Contrary to the old farmer’s tale, they do not milk cows!  They, like the Brown Snake,  prefer to hide most of the time.  According to the DNR’s website on Michigan snakes, they eat lots of mice  and  rats  but are “harmless to humans though they may vibrate their tails and bite if cornered or handled.”  So simply watch them glide gracefully and seemingly effortlessly away and all will be well.

Milk Snake
It’s June and the large, but harmless, Milk Snake is probably looking for a place to lay her eggs.

Of course, sometimes it’s the snakes that are the prey!  Just outside Bear Creek last June, we saw a regal but juvenile Cooper’s Hawk which had successfully caught what appeared to be an Eastern Garter Snake (Thamnophis sirtalis). Cooper’s Hawks  chase medium-sized birds, their preferred prey,  through the trees and eat them if they’re successful. According to the Cornell Ornithology Lab, these chases result in a signficant number of Cooper’s Hawks fracturing their wishbones, even though they are very skillful flyers.  They can also make a meal of small mammals and snakes when necessary.  This young hawk is doing what Cooper’s Hawks do with prey, holding it away from its body until it’s dead. Always good to diversify your diet, I suppose.

cr cooper's hawk with snake
A young Cooper’s Hawk is about to make a meal of an Eastern Garter Snake.

COMING ATTRACTIONS:

Earlier I mentioned Native Plant Beds.  When you visit the park from Snell Road, take a tour of the two Native Plant Beds to the north and south of the shed, as well as the native plants in the driveway circle.  Ben’s found some very easy-to-read, attractive plant signs that will help you identify some of what you are seeing.  I’m looking forward to the bloom of the Blue-eyed Grass (Sisyrinchium angustifolium), delicate blue flowers balancing on grass stems!

Blue-eyed Grass
The Blue-eyed Grass in the Native Plant Bed south of the shed is preparing to open its beautiful blue eyes at the tips of the grassy leaves.

Out in the fields, The Common Milkweed (Asclepias syriaca) has big, beautiful buds which open into their hearty, dusty pink flowers shortly.  Don’t you love how the green leaves have pink veins down the middle of them? (You can see that clearly in the bottom leaf here.)

milkweed
Milkweed buds are getting ready to open their dusty pink flowers all over Bear Creek.

And in the marsh and other wet areas, the native Button Bush (Cephalanthus occidentalis) is producing its perfectly round buds.  By mid-July, they will burst into bigger balls covered with tiny white flowers, each shooting out a long yellow-tipped stamen, looking like exploding fireworks or the old-fashioned sputnik!

button bush buds
In mid-July, the native Button Bush will burst into balls of many tiny white flowers each shooting out a long, yellow-tipped stamen. They’ll look like little sputniks!

I hope you’ll find the time some quiet afternoon to let yourself rest in the soothing sounds and beautiful sights of a walk in Bear Creek on a summer day. Or get your heart pumping at the site of a hunting hawk or a snake weaving its way through tall grass.   Time in nature is never wasted.

Cheerful Checkerspots, Munching Monarchs, and Delicate Damselflies

Summer flowers are emerging with gusto, and chances are if you watch a flower for a few minutes you’ll see a butterfly, bee, or other pollinator stop by for a quick snack of nectar or pollen. When they stop, these insects will get pollen on their bodies, either intentionally or not, and spread it to the next flower. We depend on pollinators for many of the foods we enjoy every day, including the strawberries you might be picking this weekend.

One of the pollinators I found this week was this Baltimore Checkerspot (Euphydryas phaeton) in a sedge meadow at Paint Creek Heritage Area – Wet Prairie. It was probably resting before finding its next meal, maybe the mountain mint I found flowering nearby!

This Baltimore Checkerspot is chilling on the leaf of a New England aster at Paint Creek Heritage Area - Wet Prairie.
This Baltimore Checkerspot is chilling on the leaf of a New England aster at Paint Creek Heritage Area – Wet Prairie.

On a butterfly milkweed (Asclepias tuberosa) also at Paint Creek Heritage Area Wet Prairie we found a monarch caterpillar (Danaus plexippus). Loss of breeding ground is one factor contributing to the recent decline of monarchs throughout their range, so these milkweeds provide critical habitat for these beautiful butterflies in their breeding grounds.

This monarch caterpillar is feeding on the orange-flowered butterfly milkweed. As the larva feeds on the milkweed, it gets toxic chemicals that it uses to protect itself from most predators.
This monarch caterpillar is feeding on the orange-flowered butterfly milkweed. As the larva feeds on the milkweed, it gets toxic chemicals that it uses to protect itself from most predators.

Finally, after finding these plant-feeding butterflies, I stumbled upon a fierce, dark-winged predator. Like most damselflies, the ebony jewelwing (Calopteryx maculata) feeds on gnats, aphids, and other flies. This individual was very cooperative during the photo session, calmly letting me snap a few close-up photos.

This ebony jewelwing uses the hairs on its legs to catch flies for its next meal.
This ebony jewelwing uses the hairs on its legs to catch flies for its next meal. Click on the pictures to check out the hairs!

What insects have you seen in the parks? Leave a comment below to let us know!