Alaska catalog, v4431
Page 429
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
MacLea 1968 21 October · SN 897 : light jar; t=13x6mm 28 October · 896 : light jar; t=12x7mm 951 : molt - body plumage is a mixture of old feathers and new feathers that are almost completely formed. Feathers of lower neck, breast, and upper back are out of sheaths; feathers of lower belly and back and under tail coverts are still (barely) in sheath. No new feathers on upper neck & head; some short brushes in face. Apparently this bird began to molt heavily, then stopped forming new feathers while carrying those that had already begun on to completion. One countour feather shows an open growth bar, suggesting nutritional deficiency after molt had begun. Heavy jar; t=4x2mm. Bar coming off w/ cervical skin lacks texture of c.f.o.. 955 : molt - heavy over entire body - early stage - pin feathers and short brushes. Heaviest on neck. Heavy jar; out to 1mm.