Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
June 28, 1976
Dr. Ronald Rider
Colorado State University
Fort Collins, CO 80521
Dear Ron:
I returned this past week from a brief stay at a convention in Snowmass
at Aspen, Colorado and must confess to having observed several birds there
that certainly have no business there--maybe they didn't read the bird book
distribution records!
I'd appreciate very much knowing your knowledge on recently kept records
for any of the following:
Pine Grosbeaks - There seemed to be several pairs of these at the higher
elevations of 9,500 feet to 11,300 where I was hiking.
Red Crossbills - There were pairs of these around the village as well as
farther up the slopes towards the 9,000 foot level.
Redpoll - I observed one pair of birds but only had a good look at one of
them and it obviously was a redpoll but with an extreme amount of white around
the head, neck and red-capped area as well as much white on the sides of the
body and wings. It looked very much more like a hoary than a common redpoll
but of course hoarys aren't shown on any maps much south of the Canadian
border. It was in the conifers at about 10,500 feet on June 22 as were the
other birds mentioned.
On June 21 along a creek not far from the village, I observed in addition
to the normal expected warblers - a Nashville, a Tennessee and a Mourning
Warbler. The common warblers were the MacGillivray and Audubons in that
particular creek bottom habitat.
I'll look forward to having your comments and experiences for that
part of the territory, Ron. I also hope you are having a very fine summer.
Most sincerely,
Fred G. Evenden
Executive Director
FGE/1y