The story of the Yellow-crowned Night-Heron turning up at Glenmere Park in Greeley, then successfully mating with a Black-crowned has been intriguing to follow. These two species hybridize in the wild very rarely, though it has been noticed in zoos. A scientific description of a similar liaison is described in this article from Western Birds:
http://www.westernfieldornithologists.org/docs/abstracts/39-4FP.pdf There are photos and detailed measurements of growth rates, etc. Joe Roller, Denver -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com. To unsubscribe from this group, send email to cobirds+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/cobirds?hl=en.
