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]