How to translate text using browser tools
1 March 2001 INFREQUENT COWBIRD PARASITISM ON COMMON GRACKLES REVISITED: NEW RECORDS FROM THE NORTHERN GREAT PLAINS
BRIAN D. PEER, H. JEFFREY HOMAN, SPENCER G. SEALY
Author Affiliations +
Abstract

We report nine new records of Brown-headed Cowbird (Molothrus ater) parasitism on the Common Grackle (Quiscalus quiscula): six from Benson County, North Dakota, and three from Delta Marsh, Manitoba. These observations represent 30% of the total number of records of parasitism on this host. Parasitism frequencies were 0.8% of 727 nests in North Dakota, and 4.0% of 75 nests in Manitoba. The data from Manitoba, combined with previous data from this location (Neudorf and Sealy 1994), yields a parasitism frequency of 3.4% of 119 nests examined. These parasitism frequencies are the highest recorded for the Common Grackle.

BRIAN D. PEER, H. JEFFREY HOMAN, and SPENCER G. SEALY "INFREQUENT COWBIRD PARASITISM ON COMMON GRACKLES REVISITED: NEW RECORDS FROM THE NORTHERN GREAT PLAINS," The Wilson Bulletin 113(1), 90-93, (1 March 2001). https://doi.org/10.1676/0043-5643(2001)113[0090:ICPOCG]2.0.CO;2
Received: 2 June 2000; Accepted: 1 February 2001; Published: 1 March 2001
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top