ML219193771
Contributor
Brad Bergstrom Media from this contributor Profile
Date
Location
Donald’s Airbnb
Portland, Jamaica
Media from this location Illustrated Checklist- Age
- Not specified
- Sex
- Not specified
Observation details
Flock soaring high, calling. Large swift all dark. I examined them through Zeiss binoculars while the flock was closer to me than when I took photos, and none had any sign of a white collar. Additionally: 1) their heads were smaller and wings straighter than White-collared; 2) their tails were unforked or only slightly forked; and 3) as can be seen on the second photo (closeup), some birds showed a paler gray head and neck compared to body, whereas WCSW would have a head as dark as body. For a reference for field marks 1 + 2, consult the most recent guide for the region: Kirwan, G., A. Levesque, M. Oberle, and C. Sharpe. 2019. Birds of the West Indies. Lynx Edicions, Barcelona. 978-84-16728-17-6; 978-84-16728-18-3.
Technical information
- Model
- Canon EOS 5D Mark III
- Lens
- EF300mm f/4L IS USM +1.4x
- ISO
- 4000
- Focal length
- 420 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/16.0
- Shutter speed
- 1/2500 sec
- Dimensions
- 1366 pixels x 911 pixels
- Original file size
- 205.79 KB