Nesting chronology, molt, and ectoparasites of Vaux's Swifts in northeastern Oregon

BULL E.L. and COLLlNS C.T.

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Abstract:

We recorded nesting chronology at 15 Vaux's Swift (Chaetura vauxit nests. Nest building was observed as early as 3 June. Nestlings were present from 2 July to 4-7 September and were in the nest at least 27-32 days. Molt of primaries began in early July and probably ended after the swifts left the area. Weight of 30 adults averaged 18.5 g. One species of feather louse and I species of feather mite were collected.