Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Field Notes
D.A. Bell
6 June 1990
His head looks bleached with lighter areas on feather tips of malar, above cere + eyebrows. His blueing is rather faded. The white of behind the malar comes all the way up to his ear, and fades into his eye (looks tundra-ish). Breast has long horizontal bars of flanks - look like shields, central belly has shorter bars - nearly flecks - also dirty, scald or real salmon fleck on belly. Bib has thin vertical strips on feathers suchs. The falcon presents a completely different appearance - well groomed.
She is dark, blueing nearly blackish sheen, strikes malar well defined on face, bib + vertical stripes + belly + flecks of horizontal bars that look more uniform, no less demarkation between flanks + belly. God, she has big feet. Wayne says same pair as last year.
Falcon has no bands. The both have hearts that appear very white, not creamy. Tiercel has faded cere, yellow feet. Falcon has yellow cere, feet. Falcon also has lighter fe cap feathers above cere. And, some black rachis etching in white patch behind the malar stripe. Neat - could see tip of tiercel wings extend ~ 1 cm beyond talc tip. Tiercel has high & screech, falcon very low, raspy lek- lek lek.
Ford wing bones + primaries of dead falcon - im... on our knoll. Then moved to cryic: located on shelf beneath prey, grassy, overgrown. 4 young! You can get to the cryic by climbing thru some roots. Shelf area about 6' long, but winding around + under snags & stumps. One can also walk out along grassy ledge in front of cryic.