Marilyn only caught the tail end of the radio spot, and didn't get
the names of any experts. But here's an article that discusses the
origins of brood parasitism:
http://beheco.oxfordjournals.org/content/17/2/196.full.pdf
For each of a number of avian lineages in which obligate interspecies
Hello Birders,
The other day I got into my car just as a show about birds was ending on
the car radio. I did not get to hear the name of the expert who was
telling the audience about why cowbirds started leaving their eggs in
the nests of other birds to hatch and raise their young. The
Hi Marilyn,
This article from the Smithsonian National Zoo covers your question:
http://nationalzoo.si.edu/scbi/migratorybirds/fact_sheets/default.cfm?
fxsht=3
-Geo
On Jun 26, 2011, at 9:06 AM, Marilyn Ray wrote:
Hello Birders,
The other day I got into my car just as a show about birds
...@list.cornell.edu] On Behalf Of Geo Kloppel
[geoklop...@gmail.com]
Sent: Sunday, June 26, 2011 10:01 AM
To: CAYUGABIRDS-L
Subject: Re: [cayugabirds-l] Why cowbirds foster their eggs to other birds
Hi Marilyn,
This article from the Smithsonian National Zoo covers your question:
http://nationalzoo.si.edu/scbi
-37740256-5851...@list.cornell.edu] On Behalf Of Geo Kloppel
[geoklop...@gmail.com]
Sent: Sunday, June 26, 2011 10:01 AM
To: CAYUGABIRDS-L
Subject: Re: [cayugabirds-l] Why cowbirds foster their eggs to other birds
Hi Marilyn,
This article from the Smithsonian National Zoo covers your question:
http