In
preparation for Hurricane Irma, we evacuated field sites in the Florida Keys
and coastal south Florida, moved boats and field crew to northern latitudes,
and fortified our homes. We know that many of our supporters and those who will
read this blog have been affected by this massive storm and we hope that you
stayed as safe as possible.
Of course,
something we cannot personally protect from a hurricane are wild birds,
including the ones we tag and study. Severe weather such as this presents us
with interesting, unplanned opportunities. With satellite, cell-phone, and old-fashioned
radio tracking, ARCI is following 37 individual birds of seven species, a rare
and valuable chance to learn how they weather this hurricane and respond to its
profound impacts on the many habitats, special places, and landscapes that
support their day-to-day lives. Some birds will perish in the extreme
conditions. Some will lose resources essential in the near term, or suffer
higher risks of mortality or impaired reproduction, long after the storm
passes. Others may begin their seasonal migrations only to be forced to take up
novel routes that prove threatening or take them to unsuitable wintering
destinations. Others may accomplish the
impossible, against all odds, and survive in spite of the enormous scale of the
damage, giving us some hope that wild birds will be resilient enough to cope
with nature, and with all we do to jeopardize their continued existence.
The 37
birds telling us these stories are the ones we’ve carefully captured, tagged,
and tracked with the support many of you have generously provided, including
Swallow-tailed Kites, Snail Kites, Magnificent Frigatebirds, Reddish Egrets, Southeastern
American Kestrels, White-crowned Pigeons, and a Short-tailed Hawk.
Most of
our Swallow-tailed Kites are in Central and South America now, but there are
some lingering in Florida, including “Apopka”, a cell phone/GPS-tracked bird
that we featured in our last blog. We
hope Apopka was encouraged to begin migrating by the strong northern tailwinds
on the leading edge of the advancing hurricane. We are watching closely and
hope to have more for you soon.
Four of the
seven species we are tracking in the Florida peninsula will not migrate: eight
Snail Kites tagged in south-central Florida (satellite and VHF radio
transmitters), a single Short-tailed Hawk fitted with a cell-phone/GPS device
in St. Petersburg, six Reddish Egrets from coastal Lee and Dixie counties
tracked with satellite/GPS technology, and four young Southeastern American
Kestrels tagged with tiny VHF transmitters in Hillsborough County. We can only
hope they will find a good perch and hang on, or take to the air and evade - or
endure - the most extreme conditions. Although we do not know what strategies
they employ, or which work best, we have learned from past experiences to
expect some surprises when tracking birds that encounter exceptionally severe
weather. For instance, we watched in 2016 as one of our tagged Magnificent
Frigatebirds in the northern Gulf of Mexico off Citrus County, Florida,
traveled very rapidly on winds generated by Hurricane Hermine to take refuge
well inland in southern Georgia. We are eager to see how this same bird
responded to Hurricane Irma.
Just as
Hurricane Irma began developing last week, we were in the process of placing
small VHF transmitters (tracked by hand in real time) on 12 White-crowned
Pigeons in South Florida and Keys. One purpose of this study is to link the
most significant mangrove-island breeding colonies of these birds with their
specific hardwood-hammock foraging destinations, thereby enabling wildlife
managers to prioritize protection of the most important patches of this rapidly
disappearing hardwood forest. Because these transmitters cannot be tracked
remotely, the fates of these birds could remain a mystery for some time after
Irma’s passage.
We hope
you and yours safely endured Hurricane Irma, and that you will join us in
hoping that as many birds as possible have done the same.
Finally, we
are very grateful for all the generous support we have received from
organizations, foundations, private individuals, and government agencies to
make ARCI’s challenging and important telemetry research possible. They
include: Sanibel-Captive Audubon Society; International Osprey Foundation; Felburn
Foundation; St. Petersburg Audubon Society; Venice Audubon Society; The Florida
Aquarium; West Volusia Audubon Society; Seminole County Audubon Society; Sarasota
County Audubon Society; Bailey Wildlife Foundation; Quest Ecology, Inc., Tortuga
Foundation; U. S. Fish and Wildlife Service (USFWS), including the Southeast
Region’s Division of Migratory Birds, Florida Panther National Wildlife Refuge,
J. N. “Ding” Darling National Wildlife Refuge; Florida Keys National Wildlife
Refuge Complex; Ding Darling Wildlife Society; Florida Fish and Wildlife
Conservation Commission; Microwave Telemetry, Inc.; Friends of the Palmetto
Bluff Conservancy (South Carolina); Palmetto Bluff Conservancy; Friends of the
Florida Panther National Wildlife Refuge; Friends and Volunteers of the Florida
Keys Refuges; U. S. Geological Survey; North Port Friends of Wildlife; Subaru
of Gainesville; Disney Wildlife Conservation Fund; Avian Reconditioning Center;
National Fish and Wildlife Foundation; Gulf of Mexico Institute; City of
Apopka; Halifax Audubon Society; Oklawaha Audubon Society; Clearwater Audubon
Society; Orange Audubon Society; Tampa Bay Raptor Rescue; and individuals including Judy Samelson, Bill Schwabel, Jim
Griffith, Margo McKnight, David Hartgrove, Deborah Green, Janet Marks, Eileen
Tramontana, Barbara Walker, Joni Ellis, Tom and Laura Hansen, Barbara Brown,
Paula Powell, Bill Todman Jr., Bev and Al Hansen, Fred Lohrer, Gary and Susie
Zimmerman, Kathryn Palmore, Joyce King, Gary and Joanne Grunau, Tom Staley,
Lucille, Lane, Deb Levine, Tim Harrell, Sandy Selman, Rebecca Grimm, and Alyssa
Karnitz.