The Linnaean Society of New York

Field Trip Reports
 

Central Park with Richard Lieberman, Will Papp, Kevin Sisco, and Janet Wooten, 9/14/2021

Registrar: Kristin Ellington
Participants: 58
Weather: Clear and sunny, warming to 75 degrees; westerly winds at 14 mph
Bird Species: 75

What a wonderful day in Central Park, with many seasoned and several newer birders gathered to witness the wonder of fall migration. The four LSNY groups birded for almost five hours, starting at Strawberry Fields and moving on to Hernshead, Triplets Bridge, the Shakespeare Garden, Belvedere Castle, Tupelo Meadow, Azalea Pond, the maintenance field, and the Ramble. Along the way, we noted a total of 75 species, including an exciting 21 warblers, five flycatchers, four thrushes, a Black-billed Cuckoo and an early Lincoln’s Sparrow. 


Species List 
Canada Goose
Mallard
Rock Pigeon
Mourning Dove
Yellow-billed Cuckoo
Black-billed Cuckoo
Chimney Swift
Ruby-throated Hummingbird
Ring-billed Gull
Herring Gull
Great Black-backed Gull
Double-crested Cormorant
Black-crowned Night-Heron
Osprey
Cooper’s Hawk
Red-tailed Hawk
Red-bellied Woodpecker
Downy Woodpecker
Northern Flicker
American Kestrel
Peregrine Falcon
Olive-sided Flycatcher
Eastern Wood-Pewee
Yellow-bellied Flycatcher
Least Flycatcher
Empidonax sp.
Great Crested Flycatcher
White-eyed Vireo
Warbling Vireo
Red-eyed Vireo
Blue Jay
Ruby-crowned Kinglet
White-breasted Nuthatch
House Wren
Carolina Wren
European Starling
Gray Catbird
Brown Thrasher
Veery
Gray-cheeked Thrush
Swainson’s Thrush
Hermit Thrush
Wood Thrush
American Robin
Cedar Waxwing
House Sparrow
House Finch
American Goldfinch
Lincoln’s Sparrow
Baltimore Oriole
Common Grackle
Ovenbird
Worm-eating Warbler
Black-and-white Warbler
Tennessee Warbler
Nashville Warbler
Common Yellowthroat
American Redstart
Cape May Warbler
Northern Parula
Magnolia Warbler
Bay-breasted Warbler
Yellow Warbler
Chestnut-sided Warbler
Blackpoll Warbler
Black-throated Blue Warbler
Pine Warbler
Yellow-rumped Warbler
Prairie Warbler
Black-throated Green Warbler
Canada Warbler
Wilson’s Warbler
Scarlet Tanager
Northern Cardinal
Rose-breasted Grosbeak

Alley Pond Park and Kissena Park with Alan Drogin, 9/11/2021

Registrar: Miriam Rakowski
Participants: 9
Weather: 64-78 degrees, sunny, winds SW 3-7 mph
Bird Species: 48

We began at Alley Pond Park on a sunny, beautiful morning. We saw a good variety of fall migrants: several Northern Parulas and Red-eyed Vireos bobbed in the sun, chasing insects, and Ruby-throated Hummingbirds were feeding in the Jewelweed.

Because of the recent intense rains, the pine-tree area was flooded, creating a shallow pool. It attracted many warblers to drink and bathe, allowing us close looks at Northern Waterthrush, Magnolia Warbler, and American Redstart, among others. Later on we saw a Scarlet Tanager and a Rose-breasted Grosbeak, both in the very same tree.

At Kissena Park, we watched a Blackburnian Warbler darting about in the crown of tall oak tree. Near the lake, we saw an array of other warblers, including a Blackpoll—a first sighting this fall for many.

Species Lists

Birds
Canada Goose
Mute Swan
Mallard
Rock Pigeon
Mourning Dove
Chimney Swift
Ruby-throated Hummingbird
Ring-billed Gull
Great Blue Heron
Red-tailed Hawk
Red-bellied Woodpecker
Downy Woodpecker
Northern Flicker
American Kestrel
Eastern Wood-Pewee
Great Crested Flycatcher
Warbling Vireo
Red-eyed Vireo
Blue Jay
Tufted Titmouse
White-breasted Nuthatch
Carolina Wren
European Starling
Gray Catbird
Northern Mockingbird
Veery
Wood Thrush
American Robin
Cedar Waxwing
House Sparrow
American Goldfinch
Song Sparrow
Red-winged Blackbird
Brown-headed Cowbird
Common Grackle
Northern Waterthrush
Black-and-white Warbler
Common Yellowthroat
American Redstart
Northern Parula
Magnolia Warbler
Blackburnian Warbler
Blackpoll Warbler
Black-throated Blue Warbler
Black-throated Green Warbler
Scarlet Tanager
Northern Cardinal
Rose-breasted Grosbeak

Butterflies

Black Swallow Tail
Monarch
Cabbage White

Rockefeller State Park Preserve with Anne Swaim, 9/8/2021

Registrar: Vicki Seabrook
Participants: 8
Weather: Sunny, low 80’s, southern winds, 5-14 mph
Bird Species: 48

Our first Linnaean field trip to Rockefeller State Park started right on time at 7:30am. We had lots of good looks at many birds beginning with Cedar Waxwings in the parking lot. We walked several of the wide, carriage trails and experienced beautiful scenic views. It was a lovely day and a lovely walk, led by Anne Swaim, executive director of Saw Mill River Audubon.

Species Lists

Birds
Mallard
Mourning Dove
Chimney Swift
Ruby-throated Hummingbird
Double-crested Cormorant
Great Blue Heron
Osprey
Sharp-shinned Hawk
Red-headed Woodpecker
Red-bellied Woodpecker
Downy Woodpecker
Pileated Woodpecker
Northern Flicker
American Kestrel
Eastern Wood-Pewee
Eastern Phoebe
Warbling Vireo
Red-eyed Vireo
Blue Jay
American Crow
Common Raven
Black-capped Chickadee
Tufted Titmouse
Red-breasted Nuthatch
White-breasted Nuthatch
Blue-gray Gnatcatcher
House Wren
Carolina Wren
Gray Catbird
Veery
Wood Thrush
American Robin
Cedar Waxwing
House Finch
American Goldfinch
Baltimore Oriole
Black-and-white Warbler
Tennessee Warbler
Common Yellowthroat
American Redstart
Cape May Warbler
Northern Parula
Bay-breasted Warbler
Chestnut-sided Warbler
Black-throated Blue Warbler
Black-throated Green Warbler
Scarlet Tanager
Northern Cardinal

Central Park with Richard Lieberman, Kevin Sisco and Janet Wooten, 9/7/2021

Registrar: Debbie Mullins
Participants: 44
Weather: 65 degrees, clear, winds NW, 3 mph 
Total Species
: 45

This outing was the first of this year’s fall migration walks in Central Park. After the summer hiatus, we were excited to be back in the park and to have a lovely cool and clear day. To ensure that participants were safely distanced from one another, we divided into three groups and birded Strawberry Fields, Turtle Pond, Shakespeare Garden and the Ramble. Warblers began passing through New York City in August, so it was not a surprise that we observed 11 warbler species, as well as other migrants and year-round resident birds. Unfortunately, the invasive spotted lanternfly (Lycorma delicatula) has reached Central Park and several were seen on the walk.

Species List 

Birds 
Canada Goose
Mallard
Rock Pigeon
Mourning Dove
Chimney Swift
Ruby-throated Hummingbird
Gull Species
Red-tailed Hawk 
Red-bellied Woodpecker
Downy Woodpecker
Northern Flicker
American Kestrel
Eastern Wood-Pewee
Yellow-bellied Flycatcher
Empidonax Species
Great Crested Flycatcher
Warbling Vireo
Red-eyed Vireo
Blue Jay
American Crow
White-breasted Nuthatch
European Starling
Gray Catbird
Veery
Swainson’s Thrush
Wood Thrush
American Robin
House Sparrow
House Finch
Baltimore Oriole
Red-winged Blackbird
Common Grackle
Ovenbird
Black-and-white Warbler
Common Yellowthroat
American Redstart
Northern Parula
Magnolia Warbler
Chestnut-sided Warbler
Black-throated Blue Warbler
Prairie Warbler
Black-throated Green Warbler 
Canada Warbler
Scarlet Tanager
Northern Cardinal

Fresh Kills Park with Shannon Curley and José R. Ramírez-Garofalo, 8/30/2021

Registrar: Mary Beth Kooper
Participants: 17
Weather: Mostly cloudy, 75F, SSW winds 6 MPH
Bird Species: 33

Shannon Curley and José R. Ramírez-Garofalo, both researchers at Fresh Kills Park, led our group on a fascinating morning tour of the reclaimed landfill. Our most sought-after bird of the day was the Sedge Wren, so we chose thearea where it had been seen to start our visit. We had not been there long when José heard a Sedge Wren chipping. We were told that the wrens were on their nests, likely already with young, so we did not see much activity in the fields. A few members of our group did catch a couple of quick glimpses of the wrens and nearly everyone in our group heard them. Some other highlights of the trip included brief views of one or two Grasshopper Sparrows, some interesting grasshoppers, and a vocalizing Ring-necked Pheasant. Unfortunately, we also saw many of the Spotted Lanternflies that have recently invaded our region.

Our group is very grateful to José and Shannon for taking time to guide us and share their vast knowledge of the species and habitat of Fresh Kills Park.

Species Lists

Birds
Canada Goose
American Black Duck
Green-winged Teal
Ring-necked Pheasant
Rock Pigeon
Chimney Swift
Laughing Gull
Ring-billed Gull
Herring Gull
Great Black-backed Gull
Double-crested Cormorant
Great Blue Heron
Great Egret
Snowy Egret
Black-crowned Night-Heron
Yellow-crowned Night-Heron
Turkey Vulture
Osprey
Cooper’s Hawk
Downy Woodpecker
Merlin
Eastern Kingbird
American Crow
Tree Swallow
Barn Swallow
Sedge Wren
European Starling
American Goldfinch
Grasshopper Sparrow
Savannah Sparrow
Bobolink
Brown-headed Cowbird
Common Yellowthroat

BUTTERFLIES AND OTHER INSECTS
Orange Sulphur
Monarch
Spotted Lanternfly
Black Saddlebags
Red-legged Grasshopper
Carolina Grasshopper
Green Darner
Admirable Grasshopper
Straight-lanced Meadow Katydid species

Cupsogue Flats and Beyond with Eileen Schwinn, 8/17/2021

Registrar: Regina Ryan
Trip Report: Miriam Rakowski
Participants:
 18
Weather: Partly sunny; temperature 71-74 degrees; winds SSE, 5-7 MPH
Bird Species: 46

After a rather long drive, we arrived at beautiful Cupsogue beach. We checked the marshes and saw a dark sparrow in flight, a Seaside Sparrow—a nice bird to begin our day. Up on the boardwalk we found a Little Blue Heron and a Clapper Rail.

As we walked the sandy beaches, we had good looks at Black-bellied Plovers, with a few still in their dark breast plumage. Later we saw seven Red Knots and 28 Royal Terns. Also exciting were hundreds of Common Terns and a few Forster’s Terns. As we were leaving the beach, we had good looks at a scurrying Salt-marsh Sparrow, probably a juvenile, racing around in the grasses.

After lunch, some of our group went for a brief stop at Tiana Beach, where more of these lovely shorebirds were seen.

Species Lists

Birds
Mute Swan
Mallard 
Mourning Dove
Clapper Rail
American Oystercatcher
Black-bellied Plover
Semipalmated Plover
Piping Plover
Killdeer
Ruddy Turnstone
Red Knot
Least Sandpiper
Semipalmated Sandpiper
Short-billed Dowitcher
Spotted Sandpiper
Greater Yellowlegs
Willet
Lesser Yellowlegs
Laughing Gull
Ring-billed Gull
Herring Gull
Great Black-backed Gull
Least Tern
Common Tern
Forster’s Tern
Royal Tern
Double-crested Cormorant
Great Blue Heron
Great Egret
Snowy Egret
Little Blue Heron
Black-crowned Night-Heron
Osprey
Northern Harrier
Tree Swallow
Barn Swallow
European Starling
Northern Mockingbird
American Robin
House Sparrow
Seaside Sparrow
Saltmarsh Sparrow
Song Sparrow
Boat-tailed Grackle
Common Yellowthroat
Yellow Warbler 

Butterflies
Monarch
Cabbage White
American Copper

Central Park Botany Walk with Regina Alvarez, 8/7/2021

Registrar: Anne Lazarus
Participants: 20
Weather: 70’s-80’s, calm, sunny
Bird Species: 15

Plants evolved on land from algae. They have evolved a variety of strategies for survival and reproduction and have adapted to the available resources and demands of the environment. We explored the plant ecology of the Central Park Pool and surrounding area, as well as the adjacent woodlands.

We began by examining some of the trees in the vicinity of the Pool. We studied their reproductive adaptations and defenses against predation.

We compared the simple leaf of the Green Hawthorn to the Compound leaf of the Black Locust. The compound leaf is divided into leaflets along the midrib, and the leaflets do not have leaf buds. The leaf bud is found at the base where the attachment is to the stem. The simple leaf and its leaf bud are also attached to the stem The Black Locust produces seeds in a seed pod, which are dispersed by gravity, wind and birds. The Green Hawthorn (rose family) produces fruit. Its seeds are dispersed when birds consume the fruit. Three methods of seed dispersal include animal, wind and mechanical. Touch a Virginia Knotweed or Jewelweed, and the seeds will jump. Observe the wind- blown seed dispersal of the winged Maple seeds.

Our native plants play significant roles supporting the ecological balance of the Pool. Plants surrounding the Pool, such as Lizard’s Tail, Joe-Pye Weed, American Plantain (even the non-native English Plantain) and other plants absorb Nitrogen and Phosphorous. Nitrogen and Phosphorous run-off support algae growth, which contributes to the deoxygenation of the water. Duckweed (one of the smallest flowering plants) and Watermeal (the smallest flowering plant in the world) photosynthesize and release oxygen, which contributes to the dissolved oxygen in the Pool water. Other aquatic life is supported by this process, within a balanced ecology. We examined both the native and non-native plantain. To the casual observer they look the same, but the English Plantain (non-native) has a white leaf base, and the American Plantain (native) has a red leaf base.

The Bald Cypress is a conifer and unlike most conifers, and sheds its needles in autumn. When it grows in water its roots extend above the surface to form “knees” to access oxygen. When the tree grows away from water, it does not grow “knees”. The Tuliptree also borders the Pool. It grows quickly to maturity. When growing in a woodland or open area it sheds its lower limbs and concentrates its energy on its leafy crown to maximize sunlight exposure. Black Cherry provides important nutrition to our Central Park birds. Birds, butterflies and other insects feed on the flowers of the Black Locust. The seeds are also nutritious. London Plane is a hybrid of the American Sycamore and the Asian Plane Tree. Its seeds are not fertile, and it does not regrow on its own. This tree sheds bark to eliminate parasites and fungus, but the American Sycamore does not shed its bark. The wood of the American Hornbeam is exceptionally hard. Its seeds are found in its samara, a leafy structure, which is wind dispersed. The Sweet Bay Magnolia is a lovely, native tree and is related to the Tuliptree, also in the Magnolia family. The Red Oak produces acorns, which are dispersed by animals.

Flowering plants are abundant. Our native rose is the Carolina Rose. The stipule of a native rose, located at the base of a leaf stalk or petiole is smooth, but the stipule of a non-native rose has hairy fringes. Bees love to visit the roses. Virginia Knotweed (native) and Smartweed (non-native) are Polygonaceae, buckwheat family. They have a sheath, which is a leaf-like structure where the blade attaches to the stem.

Four very important plants for our birds and insects are Pokeweed, Poison Ivy, Jewelweed and the fragrant Sweet Pepperbush Pokeweed seeds are an important food source for our birds. Poison Ivy attracts sixty species of bird and is rich in essential fatty acids and protein. It does not choke our trees and is easily and sensibly managed without herbicides. Jewelweed is an important food source for hummingbirds. It is an annual. It grows to completion each summer and then dies back. Sweet Pepperbush is a source of pollen for many butterfly species and other pollinators. It is tolerant of sun, rain and a variety of soils.

Ferns reproduce from spores. Fern species have specific sporangia patterns on the underside of their pinnae. Sporangia contain the spores, from which new ferns will grow. Some ferns have separate stalks with the sporangia. We examined the sporangia pattern on the underside of the Christmas Tree and Maidenhair pinnae. The Maidenhair belongs to a large family of ferns.

Lichen consist of two symbiotic organisms. Each lichen species has a specific alga and a specific fungus. The fungus provides the alga with external nutrients, and the alga provides sugars to the fungus. We saw lichen growing on the rocks. Lichen are considered organisms.

Two non-native invasive plants are Porcelain Berry, a vine which can smother trees and non-native Hedge Vine, which crowds out almost all other plants.

We had an opportunity to observe the egg of the Lacewing, which is supported by a thin, vertical filament. The filament protects the Lacewing from predators such as ants. Lacewings are beneficial insects and consume aphids and other pests. Another interesting insect was the predatory Banded Net-winged Beetle. We carefully examined a branch covered with aphids. Leafminers also captured our attention. Leafminers are insects, which include certain species of flies, moths and wasps. The insect lays an egg under the epidermis of a leaf. The larvae tunnel through the leaf consuming epidermal leaf tissue and eventually emerge as adults. They leave track marks, which can be specific to the species. We examined a leaf with track marks. Some plants, such as Which Hazel create protective leaf galls. Insect larvae (specific to the species) determine the shape and size of the gall and emerge as adults.

In 2008 a violent storm swept through the north end of Central Park uprooting many trees. The park has since recovered with restored meadows and the planting of many native trees.


Species Lists

Birds
Canada Goose
Mallard
Rock Pigeon
Black-crowned Night-Heron
Downy Woodpecker
Red-eyed Vireo
Blue Jay
European Starling
American Robin
House Sparrow
Common Grackle
Black-and-white Warbler
American Redstart
Yellow Warbler
Northern Cardinal

Plants
Trees

Black Locust
Hawthorn
London Plane
American Sycamore
Black Cherry
Tulip Tree
American Hornbeam
Bald Cypress
Willow
Sweet Bay Magnolia
Sassafras
Red Oak

Shrubs, Vines and Flowers
Native
Sweet Pepperbush
Witch Hazel
Purple Flowering Raspberry
Pokeweed
Jewelweed
Lizard’s Tail
Spotted Joe-Pye Weed
Poison Ivy
Yellow Wood Sorrel
Sunflower species
Watermeal
Duckweed
Virginia Knotweed
American Plantain
White Wood Aster
Cardinal Flower
Everlasting Pea
Common Burdock
Carolina Rose
Non-native
Lady’s Thumb
English Plantain
Porcelain Berry
Hedge Vine

Fern
Christmas Fern
Maidenhair Fern

Grass
Bottlebrush Grass

Insects
Banded Net-winged Beetle
Aphid species
Lace-wing Egg
Leaf Miner Tracks

Butterflies
Cabbage White
Possible Eastern-tailed Blue
Possible Summer Azure
Monarch

Odonates
Green Darner
Black Saddlebags
Eastern Amberwing
Blue Dasher

Mammals
Eastern Gray Squirrel
Eastern Chipmunk
Brown Rat

Herps
Bull Frog (h)
Red-eared Slider

Jamaica Bay Wildlife Refuge with Richard ZainEldeen, 7/24/2021

Registrar: Ellen Hoffman (with Anne Lazarus on site)
Trip Report: Anne Lazarus
Participants: 10
Weather:
 Clear, temp. mid 80s F, winds 10-15 mph
Bird Species: 57

We began our walk at the south end of the East Pond at high tide, when the beach mudflats are inaccessible and the shorebirds move to the pond’s exposed mudflats. We were greeted by both Greater and Lesser Yellowlegs, Short-billed Dowitchers, and Semipalmated and Least Sandpipers. We enjoyed scoped views of the continuing Black-bellied Whistling-Duck and were surprised by the sighting of a Pintail Duck. Everyone enjoyed the antics of a Gull-billed Tern that was feeding off the surface of the water and doing its best to steal from other terns.  

Our hardy group then marched through the muck and mud to the Raunt, which attracts birds to its many posts and logs and where we saw large numbers of peeps, more Short-billed Dowitchers, and Spotted Sandpipers. Our goal, however, was the Long-billed Dowitcher, and we finally found it, mixed in with a large number of Short-billed Dowitchers. Other treats were a Willow Flycatcher perched atop a high tree and singing its “Fitz Bew,” and Bank Swallows mingling with Tree, Barn and Northern Rough-winged Swallows. We also enjoyed our parking lot birds—Yellow Warbler, Carolina Wren, House Wrens, Northern Mockingbirds, Gray Catbird, and more. Birds were everywhere.

Butterflies and odonates were also plentiful. En route to the East Pond we saw several tenerals—newly emerged odonates, not yet in adult colors, their bodies and wings still hardening. These were damselflies; Rambur’s Forktails and Familiar Bluets are common denizens of Jamaica Bay. Not as common was an immature male Variable Dancer.

Species Lists

Birds

Black-bellied Whistling-Duck
Canada Goose
Mute Swan
Gadwall
Mallard
American Black Duck
Northern Pintail
Ruddy Duck
Rock Pigeon
Semipalmated Plover
Killdeer
Least Sandpiper
Semipalmated Sandpiper
Short-billed Dowitcher
Long-billed Dowitcher
Spotted Sandpiper
Greater Yellowlegs
Lesser Yellowlegs
Laughing Gull
Ring-billed Gull
Herring Gull
Great Black-backed Gull
Gull-billed Tern
Common Tern
Forster’s Tern
Double-crested Cormorant
Great Blue Heron
Great Egret
Snowy Egret
Black-crowned Night-Heron
Yellow-crowned Night-Heron
Glossy Ibis
Osprey
Peregrine Falcon
Willow Flycatcher
American Crow
Fish Crow
Northern Rough-winged Swallow
Purple Martin
Tree Swallow
Bank Swallow
Barn Swallow
House Wren
Carolina Wren
European Starling
Gray Catbird
Northern Mockingbird
American Robin
House Sparrow
American Goldfinch
Eastern Towhee
Red-winged Blackbird
Common Grackle
Boat-tailed Grackle
Northern Waterthrush
Yellow Warbler
Northern Cardinal

Butterflies
Cabbage White
Azure, most likely Summer
Eastern-tailed Blue
Anglewing Butterfly
Monarch
Broad-winged Skipper

Odonates
Bluet, possible Familiar Bluet (teneral) 
Variable Dancer (male immature)
Rambur’s Forktail (teneral)
Blue Dasher
Green Darner