Wednesday, September 25, 2013

Unprecendented view of White-crowned Pigeon movements

First satellite telemetry data received from White-crowned Pigeons
For the first time ever, we can study the movements of White-crowned Pigeons through satellite tracking technology. ARCI is partnering with many Caribbean partners in this range-wide study. We have been receiving excellent telemetry data from the two White-crowned Pigeons we recently fitted with 5-gram satellite transmitters in the lower Florida Keys. These transmitters, made by Microwave Telemetry, Inc., are the smallest of their kind.

Cudjoe and West
Cudjoe and West are the first White-crowned Pigeons to be tracked by satellite.

Cudjoe was tagged on 18 August 2013 on Cudjoe Key. For nearly a month, she made daily foraging trips that included the island’s southeast corner and several small nearby islands—an area less than two miles wide. Recently, however, Cudjoe started ranging farther east to Summerland Key. Does this indicate that migration is about to begin?

West was tagged on 4 September 2013 on Stock Island at the Key West Tropical Forest and Botanical Garden. His movements also covered several adjacent islands within an area similar in size to Cudjoe’s activity range. Like Cudjoe, West has made longer daily excursions in recent days.

Partners and Supporters

This project, funded by the Florida Keys National Wildlife Refuges Complex (U.S. Fish and Wildlife Service), is a collaboration with the Refuge’s Senior Wildlife Biologist Tom Wilmers and part of a range-wide study with many Caribbean partners. We thank Refuge Manager Nancy Finley for her critical support; and the Key West Tropical Forest & Botanical Garden, Deb Curlee, Jim Platt and Bev and Mike Welber for providing access and assistance.
Movements of satellite-tracked White-crowned Pigeons in the lower Florida Keys.

Friday, September 20, 2013

White-crowned Pigeons successfully tagged in the Florida Keys

White-crowned Pigeon project begins

A solar-powered transmitter is
attached to a light harness made
of teflon ribbon.  
As the Swallow-tailed Kites fly overhead on their way to wintering areas in South America, ARCI’s field crew is on the ground in the Florida Keys beginning a range-wide collaborative study of White-crowned Pigeons. 

Every national population of this vulnerable species, which occurs only in extreme southern Florida, the Bahamas and the Caribbean Basin, is threatened due to poaching, poorly managed hunting, or loss of essential habitat. This newly-funded project, with enthusiastic partners in at least eight island nations, will use satellite telemetry to track migrations, determine seasonal habitats, and assess local threats to White-crowned Pigeons. Each individual we mark provides valuable information for the conservation of this sensitive species. 

A vital part of this effort is teaching the public and policy makers the importance of a science-based, cooperative strategy for saving this highly mobile and popular species, which is the primary seed disperser for the highly threatened West Indian hardwood forest community.


Success at the Key West Tropical Forest and Botanical Garden  

At 8:14 a.m., on 4 September 2013, the field crew successfully trapped and tagged an adult White-crowned Pigeon (the third of the season) at the Key West Tropical Forest & Botanical Garden, and outfitted the bird with a light satellite transmitter. The bird was released less than 30 minutes later and flew off strongly and landed in a nearby Jamaica Dogwood tree in the gardens where it rested for over an hour. The team also caught a juvenile bird on August 2nd, and being too young to tag, was banded with a USFWS aluminum band.



A tagged bird is ready for release.
Assistance on the ground
We'd especially like to thank Misha McRae, executive director of the Key West Tropical Forest and Botanical Gardens, for graciously welcoming our project and personally assisting us as we sought a place to set our mist nets. Thanks to Jessica Padilla for her volunteer help, Barrie Byron for taking photos of us while we had our hands full with the juvenile bird and of course Gwen Filosa for the positive article she wrote up in the Key West Citizen on Monday.

The field crew works at the Key West Tropical Forest and Botanical Gardens where one adult White-crowned Pigeon was outfitted with a 5-gram, solar-powered satellite transmitter. This particular model, made my Microwave Telemetry, is the lightest satellite transmitter available for tracking birds to date. Click here for more information about this technology.

Tuesday, September 3, 2013

Site undergoing maintenance

Please bear with us as we work on the latest website improvements. You will find these pages, under the "Outreach" heading, currently under construction:
  • Education
  • Scientific Advising
We aim to have the pages updated soon.

We welcome you to contact us should you find any broken links or missing pages at arci@arcinst.org