|
|||||||||||||||||||||||||
Cackling Goose (Branta hutchinsii), Whitewater Draw, Sulphur Springs Valley, Cochise CountyFour Cacking Geese were first reported at Whitewater Draw on 7 November 2009 by Ann and Alan Miller. Reports since then have described both light and dark breasted birds and there may be two different family groups of different subspecies present. These four Cackling Geese of the dark-breasted subspecies Branta
hutchinsii minima were photographed by Scott Olmstead on 27 December 2009 Cackling Goose, which consists of four extant subspecies, was split as a
separate species from Canada Goose in 2004. The status of this new species
in Arizona is poorly known and only a few have been carefully documented.
While the smallest form, B. h. minima, is relative easy to identify, the
other, larger, light-breasted forms, can be extremely difficult to separate from
the smallest Canada Goose, B. c. parvipes, which is regular in Arizona in
small numbers. See here
for more information on the identification challenges. The
combination of dark breast, very short stubby bill, steep forehead, short neck
and very small size (slightly larger than a Mallard) makes the identification of
these minima Cackling Geese straightforward.
27 December 2009, photo by Scott Olmstead All photos are copyrighted© by photographer |
|||||||||||||||||||||||||
Submitted on 28 December 2009 |
|||||||||||||||||||||||||
|