ML527269501
Contributor
Tom Benson Media from this contributor Profile
Date
Location
Crespi Knoll (ORA Co.)
Orange, California, United States
Media from this location Illustrated Checklist- Age
- Not specified
- Sex
- Not specified
Observation details
Black and white booby that spent several minutes circling and plunge diving around the boat before flying off to the north. Identified by its orange-yellow bill with golden yellow tip, slender bill with slightly concave culmen, extensively white central rectrices, and dusky feathering on the head. Identification as Nazca supported by Todd McGrath, Dave Pereksta, and Peter Pyle, but Jon Dunn disagrees and prefers to consider it Masked/Nazca. See https://www.birdpop.org/docs/pubs/Pyle_2020_Molt_Age_and_ID_of_MABO_and_NABO.pdf for identification criteria. Many photos. Spotted by Steve Turley.
Technical information
- Model
- Canon EOS R7
- Lens
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 100
- Focal length
- 234 mm
- Flash
- Flash did not fire
- f-stop
- f/8.0
- Shutter speed
- 1/640 sec
- Dimensions
- 3830 pixels x 3297 pixels
- Original file size
- 1.3 MB