RE: [CALBIRDS] RE: How widespread in CA is African Collared-Dove?
- [Note: I'm not the listowner, but it's my opinion that Streptopelia
doves are part of the California avifauna, and therefore fair game for
discussion on this list serve; I agree that discussions of population
genetics may not qualify, however.]
Two quick points:
(1) Floyd surely is seeing African Collared-Doves (= "Barbary" or
"Ringed Turtle-" Doves), and I didn't mean to imply in my previous
messages that pale variant ECDs were the only possible explanation for
what he was seeing. Domestic African Collared-Doves (ACDs or RTDs)
escape very frequently, and of course central Los Angeles used to have a
population that was even "ABA Countable" in the 1960s and 1970s (and had
been established by the 1940s or earlier). Various morphs of ACDs are
still released at the sorts of celebrations and public events that
require liberation of large numbers of totally discombobulated domestic
birds, and individuals escape all the time.
(2) Regarding the discussion of ECDs being largely absent from most
large urban areas such as the main San Francisco Bay metropolis, I think
this is partly a matter of habitat -- this species generally doesn't do
well in heavily urban areas. ECDs are absent or rare (tiny, very
localized populations) in most of the greater Los Angeles urban area as
well. This species depends almost entirely on grain -- in agricultural
areas, weedy rural areas, industrial areas with grain mills, railroad
right-of-ways in grain-producing regions, etc. Just about its only
option in highly urbanized areas is commercial bird seed at feeders, and
apparently there aren't enough feeders to sustain ECD populations in
most highly urbanized areas.
I'd much rather be out looking at Arctic Warblers than blabbing on about
Kimball L. Garrett
Ornithology Collections Manager
Natural History Museum of Los Angeles County
900 Exposition Blvd.
Los Angeles CA 90007
(213) 746-2999 FAX
> -----Original Message-----Behalf
> From: CALBIRDS@yahoogroups.com [mailto:CALBIRDS@yahoogroups.com] On
> Of Floyd Hayes
> Sent: Friday, September 07, 2007 10:59 AM
> To: Calbirds
> Subject: [CALBIRDS] RE: How widespread in CA is African Collared-Dove?
> I don't doubt that there are pale Eurasian
> Collared-Doves resembling African Collared-Doves, but
> I was familiar with both of these species from the
> Caribbean and I'm quite confident both are present in
> the Napa Valley.