cecropia moth

Cecropia moth, early morning. Dianne Crary Photo

The Cecropia moth, largest moth in the eastern U.S., made a surprise appearance on Fishers Island July 3, 2018. Dianne Crary was out for a morning walk and spotted the stunning moth on the needles of a yew shrub on Lucinda Herrick’s property.

Adam Mitchell, University of Delaware PhD candidate has encountered Cecropia caterpillars on the Island, but not the adults. “This moth is a female, so she was probably laying eggs for the next generation nearby,” Mr. Mitchell said. “They feed on a lot of different plants, but cherry, birch and sugar maple will likely be the host plants on Fishers.

Cecropia moth, late afternoon. Lucinda Herrick Photo

“Unfortunately, this species of moth is in decline, due to a parasitic fly that was initially released to handle gypsy moths. They also suffer from the loss of native host plants.

“Although caterpillars appear to have spikes on their body, they do not sting. Caterpillars will move to the base of host plants and form silken bag cocoons, where they will overwinter.”

osprey fledglings

The osprey population on Fishers Island continues to grow. Andrew Edwards used a drone to count the number of fledglings in nests this year.

FIConservancy’s 2018 Spring Migratory Bird count, held May 6 in collaboration with the National Audubon Society, was a huge success! Three hundred birds, comprising 55 species, were recorded from one end of the Island to the other, compared with 45 species recorded last spring.

An overcast sky and the threat of rain did not deter a group of 13 birders in four vehicles, led by Adam Mitchell from University of Delaware. Following Audubon bird count rules, the group made 15 five-minute stops. At each timed stop, the birders would count birds and call out what they saw.

Sites with the greatest number of bird species included:

  • Race Point (15)
  • Money Pond (15)
  • Demonstration Garden/Theater (13)

“It is likely that the increased number of birds in the Parade Grounds correlates directly with the removal of invasive plants,” Mr. Mitchell said.

Although 55 is the number for the official count May 6, a few dedicated birders informally added nine more species as they scanned the sky on the ferry ride to the Island May 5 and at an informal birding tutorial that afternoon.

Birders also reported hearing an American woodcock calling out on the Parade Grounds the night before the official count.

Photo by Kristen Peterson.

Recorded bird species, both official and unofficial:

Canada Goose
Mute Swan
Mallard
American Black Duck
Common Eider
Red-breasted Merganser
Ring-necked Pheasant
Common Loon
Great Cormorant
Double-crested Cormorant
Great Egret
Black-crowned Night-Heron
Osprey
Northern Harrier
Bald Eagle
Red-tailed Hawk
Killdeer
Greater/Lesser Yellowlegs
Herring Gull
Great Black-backed Gull
Common Tern
Mourning Dove
Chimney Swift
Belted Kingfisher
Downy Woodpecker
Northern Flicker
American Kestrel
Blue Jay
American Crow
Fish Crow
Northern Rough-winged Swallow
Tree Swallow
Barn Swallow
Black-capped Chickadee
Tufted Titmouse
White-breasted Nuthatch
Winter Wren
Carolina Wren
Blue-gray Gnatcatcher
American Robin
Gray Catbird
Northern Mockingbird
European Starling
Cedar Waxwing
Blue-winged Warbler
Black-and-white Warbler
Common Yellowthroat
Northern Parula
Yellow Warbler
Black-throated Blue Warbler
Yellow-rumped Warbler
Chipping Sparrow
Dark-eyed Junco
Song Sparrow
Eastern Towhee
Northern Cardinal
Baltimore Oriole
Red-winged Blackbird
Brown-headed Cowbird
Common Grackle
House Finch
American Goldfinch
House Sparrow
Merlin

2018 controlled burn at Battery Marcy, east of the airport. Jane Ahrens Photo

The Fishers Island Fire Department, in coordination with FIConservancy, annually conducts controlled or “prescribed” burns in the Parade Grounds and surrounding areas that are part of the Conservancy’s Grassland Restoration project.

Fire is necessary to maintain grassland, and different sections are burned on a rotating basis every three years, with careful exclusion of nesting bird areas.

John Sargent wrote a thoughtful and comprehensive story about the 2018 controlled burn.

Woods Hole Oceanographic Institution’s (WHOI) Coastal Systems Group (CSG) is hunting for evidence of ancient (paleo) hurricanes, and the clues lie in the mud deposited at the bottom of these ponds. “We look for layers of sand that may have been washed over with hurricane storm surge. These layers of sand originating on the beach and carried by the waves and high waters, cover the mud and offer clues about when and how large the storm may have been.” As a precursor to collecting the deep cores of mud from the bottom of the ponds, the team from Woods Hole first needed to determine several bits of information such as: How deep are the ponds? Are they fresh, brackish or salty? For how long have the ponds been there? And are they susceptible to hurricanes of the past tracking along the eastern seaboard?

WHOI visited Fishers Island on June 12, 2014 in an effort to gain scientific information about several ponds on the east end of the Island. With the help of Fishers Island Naturalist Justine Kibbe and Island Sentinel Conner Wakeman, they surveyed the ponds using a skiff (special thanks to Steve Malinowski) kayak and canoe, and utilized scientific equipment such as a depth gun and CTD (Conductivity/salinity, Temperature, Depth) to make measurements.

The ultimate goal was to map the ponds then revisit sites and core 30 feet into the mud to find layers of sand deposited from past hurricanes. The historic record, collected from human observation and tide gauge data, gives us only a short history of hurricane events (about 150 years), whereas a 2,000 year story is preserved in the mud.

Woods Hole Oceanographic institute will be back to core Island Pond sometime over the summer….stay tuned.

FIConservancy’s annual Spring Migration Bird Count will be Sunday May 6.

First, however, come to the Parade Grounds Sat. May 5 at 3 p.m. for a brief tour and a tutorial by the experts on the best way to count birds. The University of Delaware team of Adam Mitchell, Emily Baisden and Will Aleida will lead the bird count and be available to answer all questions about migratory birds.

FIConservancy President Tom Sargent and his wife Allison will host a reception at their house Sat. May 5 at 6:30 p.m. for all those participating in the Spring Migration Bird Count and for anyone else interested in meeting the University of Delaware experts.

The Spring Migration Bird Count begins Sun. May 6 at 8 a.m. Meet at the Community Center and bring your binoculars!

 

Restored grassland at Parade Grounds.

It is hard to believe that spring is upon us when the biggest snow storm of the season has just blanketed the east coast. But Red Wing Blackbirds have returned to the island and the White Throated Sparrow could be heard calling “Sam Peabody Sam Peabody” shortly thereafter – a sure sign that the seasonal shift is now upon us.

Tom Sargent

Soon, many of us will be returning to Fishers Island and to the beauty and serenity that the island provides. With summer fast approaching, we at the Fishers Island Conservancy have been getting to work planning exciting initiatives and programs. One of our first yearly projects is our seasonal burn that took place in February in partnership with the Fire Department. Our ongoing work will continue in the Sanctuary with remediation to tackle invasives while over seeding with native grasses and wild flowers. Look for additional bird boxes to provide nesting spots for the Eastern Bluebird as well as abundant Tree Swallows.

Stop by the Demonstration Garden and see how well it fared over the winter and watch it slowly wake with the longer days. Sit on one of the benches and observe the host of wildlife that our native flora attracts. We will have more benches throughout the sanctuary to invite contemplation and a chance to disconnect for a little while. Perhaps you will catch a glimpse of the Northern Harriers that call the sanctuary home. It’s a truly wonderful sight.

The Conservancy will continue to work with Professors Doug Tallamy and Adam Mitchell from the University of Delaware. We will hold our Spring Migration Bird Count the first weekend in May, which promises to be enlightening and fun. All are welcome to go birding with some of the best. The Weed Team from the university will be returning again this June so please say hello when you see them in the field. We will be joined by the Delaware folks in both July and August for the Conservancy’s Sunset on the Beach (Saturday July 21st) as well as Nature Days (Aug.11th). Please stay tuned for specific program events.

In addition to our work in the Sanctuary, our island naturalist Justine Kibbe, has been continuing to engage our students in the Island Sentinels program. She also provides real time year round observations that enhance our understanding of the island’s place in the natural world. We will be welcoming back those involved in eco friendly mosquito control and will perform occasional water testing to assure our beaches and waterways stay as clean as possible. As always, we will work in concert with homeowners to offer remediation plans to further eradicate the “foreign invaders” that disrupt and overwhelm our native species.

As you think of the coming summer and the precious beauty of the Atlantic coast, please remember the Fishers Island Conservancy in your giving plans. Your donation is greatly appreciated.

For the Conservancy,
Tom Sargent, President

Battery Marcy, after the 2018 prescribed burn

Battery Marcy, after the 2018 prescribed burn.

In February, FIConservancy proceeded with its annual prescribed burn. The burn is critical to maintaining grassland restoration. We are grateful for our partnership with the Fishers Island Fire Department for the annual burns and with the Fishers Island Ferry District for the opportunity to establish grassland restoration on grounds owned by Southold and managed by the Ferry District. Click for more information on: Why We Burn.

FIFerry District 2016 Burn Plan

FIFerry District 2018 Burn Plan

Plum Island Lighthouse JT Ahrens

Plum Island Lighthouse. JT Ahrens photo

“Years of observation and research show that Plum Island is an extremely important migratory rest stop, critical home and breeding ground for a wide variety of birds (reportedly in the 100s), fish, and other land and marine mammals.”

– By Jane T. Ahrens
Editor, FishersIsland.net

Olivia Backhaus

Olivia Backhaus, 21, lives in Stonington, CT. She first came to Fishers Island School in seventh grade and graduated in 2014. 2017 was her fifth summer working as a Sentinel for FIConservancy. Her interest in biology was sparked by the experiential nature of the science curriculum at FI School, which used the Island as a living laboratory for learning biology.

Olivia assumed a leadership position in 2016, training and overseeing members of the Sentinel team and assisting with other FIConservancy programs, such as Nature Days. She also spent the summer collating and analyzing daily data collected by the Sentinels and by Justine. Working as a Sentinel has inspired Olivia to major in Biology and minor in Environmental Studies at Sewanee: The University of the South. In the future, she plans to practice environmental law.

Gardner Thors

Gardner Thors, 15, lives in New York City and is a sophomore at Groton School in Massachusetts. He has been a Sentinel for three years, after first volunteering for one summer. As a city kid, he doesn’t get to experience nature and wildlife except for the landscaped Central Park and the infamous pigeons and squirrels of the city. Fishers Island is his wildlife sanctuary. Gardner has been summering here for as long as he can remember, and Fishers holds a special place in his heart. That is why he chose to play a part in the preservation of this environment. Gardner looks forward to learning more about the Island’s ecosystems and sharing what he learns with the Island community. His brother, Wilson, is also a passionate Sentinel.

Wilson Thors

Wilson Thors lives in New York City and is a freshman at Groton School in Massachusetts. 2017 was his first summer as a Sentinel, although he volunteered to monitor for FIConservancy last year. He joined the Sentinel program, because he was curious about his brother’s experiences as a Sentinel. Wilson has always appreciated the natural beauty of Fishers Island, but now he has a deeper love of the Island since learning more about animals and learning that we share this great place with the wildlife.

Kain Upson

Kain Upson grew up summering on Fishers Island, surrounded by the wildlife he now has the privilege of monitoring. 2017 was his first summer as an Island Sentinel. His special interest in biology, and eventually environmental biology, began during his senior year in high school, when a “fantastic” biology teacher was able to steer him in the right scientific direction. He is looking forward to sharing many more summers with the returning migratory and resident animals, who call Fishers Island home.

Conner Wakeman

Conor Wakeman

Conor Wakeman, 19, of Greenwich, Conn., grew up summering on Fishers Island and is a sophomore at University of Pennsylvania studying economics. Conor spent three years as an Island Sentinel and was an emeritus Sentinel in 2017. After seeing an article about Justine Kibbe’s conservation efforts on the Island, he decided to use his love for the environment and wildlife science to help improve the ecological wellbeing of Fishers Island.

Since he loves spending time with nature and watching animals, Conor thought it was a great opportunity to collect data that would help understand this unique environment. During his time as a Sentinel, he worked on improving the efficiency of data collection and helped facilitate research about organizations such as Woods Hole Oceanographic Institute. With his expanding knowledge of the local ecosystem and shifting animal populations, he hopes to raise awareness of FIConservancy and help preserve the Island’s pristine environment.