Comprehensive Description
(
英語
)
由Smithsonian Contributions to Zoology提供
Icteria virens (Linnaeus)
To the few earlier records (Friedmann, 1963:120–122) from western Canada may be added 3 more parasitized nests found in Alberta (Prairie Nest Records), the first instances reported from that province.
YELLOWTHROAT
- 書目引用
- Friedmann, Herbert, Kiff, Lloyd F., and Rothstein, Stephen I. 1977. "A further contribution of knowledge of the host relations of the parasitic cowbirds." Smithsonian Contributions to Zoology. 1-75. https://doi.org/10.5479/si.00810282.235
Comprehensive Description
(
英語
)
由Smithsonian Contributions to Zoology提供
Icteria virens (Linnaeus)
To the 2 earlier records of this warbler as a victim of the bronzed cowbird (Friedmann, 1963:180–181) may be added 3 more. A set of 3 eggs of the host and 1 of the parasite, found at Rio Grande City, Texas, 1 May 1943, by F. F. Nyc, Jr., is now in the collections of the Western Foundation. Another instance, found by E. M. Hall at Sonoita Creek, near Patagonia, Arizona, 9 June 1967, contained 3 eggs of the chat, 1 of the bronzed cowbird, and 1 of the brown-headed cowbird. Such instances of dual parasitism of this host in southeastern Arizona may not be infrequent, as the same observer found another nest of this species in the same locality on 3 June 1974, with 1 chat egg, 1 of the bronzed cowbird, and 1 of the brown-headed cowbird.
The yellow-breasted chat seems to be less frequently victimized by the bronzed than by the brown-headed cowbird, but the reason for this difference is not yet understood.
PAINTED REDSTART
- 書目引用
- Friedmann, Herbert, Kiff, Lloyd F., and Rothstein, Stephen I. 1977. "A further contribution of knowledge of the host relations of the parasitic cowbirds." Smithsonian Contributions to Zoology. 1-75. https://doi.org/10.5479/si.00810282.235
