Field notes, v4194
Page 343
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Duval, E.H. 2008 Journal Isla Boca Brava, Chiriqui Prov., Panama 8 June ca[illegible] camera). His tail did not yet have the "racket" structure of the adults, though it did narrow in the region that lacks barbs in the adult birds. It seems to be common wisdom that motmots consciously pluck out the feather sides to form their racket tail. This intrigues me because it seems so unlikely. Far more likely would be a genetic (inherited) tendency for these barbs to weaken & thus break off more easily as the feathers age. I guess that testing this would require pulling out the tailfeathers of captive motmots & watching them regrow several times. Perhaps with 200 animals? What zoo has a large population of motmots? Mantarin activity at the display perches is definitely flagging. I hardly heard any QRing while I netted today, & our last many watches have been mostly blank or just long fallies of aw, to, & walk calls. I think it may be best to concentrate on catching unb[illegible]