So does this mean that CBRC will be unlikely to accept this well photographed bird? What records show up for young Gray Hawks that may have escaped from zoos or private aviaries? Are any Gray Hawks being kept by California zoos?
When we try to pick out anything by itself, we find it hitched to everything else in the universe.
Sent: Wednesday, November 28, 2012 11:37 AM
Subject: [CALBIRDS] Gray Hawk vagrancy and winter occurrence
In case anyone's interested, here's what I could quickly dig up--with the
help of several experts in the Southwest and elsewhere--on Gray Hawk
vagrancy in the U.S. (and Mexico), plus some brief comments on winter
occurrence. [Though first off, I'd like to mention that this species' name
is Gray Hawk, not "Grey" Hawk, which has been unfortunately used in some
publications to maintain British spelling for a bunch of species that occur
solely in the New World....] Anyway, Gray Hawk is certainly not a species
with a long record of long-distance vagrancy, and it was probably NOT on
many people's short-list of the next several species to turn up in
California! Some "vagrant" records slightly to the north of the species'
normal range in AZ, NM, and TX may better be termed--to quote Mark
Stevenson--as short-distance overshoots, adventurers, or potential
colonizers, and indeed this species has recently spread as a nesting
species (involving isolated, semi-sporadic pairs) to south-central AZ, se.
NM, and w. TX. Going farther out than that, there are several records from
the greater Prescott region in northern AZ. And beyond that, there are at
least 3 records of true long-distance vagrants:
Kansas: adult in April 1990 at Milford Reservoir, Geary County, which was
a sight-record only by multiple observers, so put on state's hypothetical
list; but this was followed by an adult photo'd in Wichita in Oct 2005.
Baja: an adult photo'd in southern Baja California Sur on 30 Oct 2010.
There is also a report from 1871 in Illinois.....
The Kansas records committee originally declined to accept the first
record--without a photo--also because of the belief that the bird might be
an escape from a falconer; but later research suggested that this species
is not kept by falconers, at least not at all regularly.
As for late fall and winter occurrence, this species is rare but somewhat
regular then in the Lower Rio Grande Valley in s. TX. But in AZ, it is
casual in winter. One such winter bird in se. AZ is an adult that has
returned for many years to an off-ramp area along I-19 at Amado, south of
Green Valley, in an open-country, non-riparian, highway-edge situation
(ranchland with scattered mesquite) somewhat reminiscent of where this
current Carpinteria highway bird is hanging out!!
--Paul Lehman, San Diego
mail2web.com - Microsoft® Exchange solutions from a leading provider -
[Non-text portions of this message have been removed]