Alaska species accounts, v4430
Page 425
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Maclean 1965 C. melanothos given up any thoughts of breeding - completely (but loosely) social groups of both sexes intermixed. Have heard no display since 1 July. 6 July AACS birds have given up the effort. Feeding completely socially, with no apparent regard for sex. Hears one "boom" aerial display by traplines IVA-B. Apparently everyone hasn't given up. 7 July Observes and collects along Voth Creek. Highly social and unsettled - flew readily along creek. Collects 3 after feeding observations - (1) regresses ♂, t=5mm - throat region much regresses; (2) ♀ coming up 2nd time - old brood patch + ruptures follicles, but enlarges ova; (3) ♀ with brood patches inactive through for the year. Apparently there has been enough activity to keep ♀ (2) active.