On Sat, 18 May 1996, Dale Goble wrote:

>
> To what extent do hummingbird hybridize?

(description and discussion of probable hybrid hummer deleted).

>From Kenn Kaufman's Field Guide to Advanced Birding: "Hummingbird species
hybridize far more often than members of most bird families (i.e., in
hummingbirds hybridization is rare rather than extremely rare)."

Some references:

Banks, R. C., and N. K Johnson. 1961. A review of North American hybrid
hummingbirds. Condor 63:3-28

Short, Lester L. and A. R. Phillips. 1966. More hybrid hummingbirds from
the United States. Auk 83:253-265

Wells, S, R. A. Bradley, and L. F. Baptista. 1978. Hybridization in
_Calypte_ hummingbirds. Auk 95:537-549.

Chris Hill
Everett, WA
cehill at u.washington.edu