Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

Foraging Success of Cattle Egrets, Bubulcus ibis

James J. Dinsmore
The American Midland Naturalist
Vol. 89, No. 1 (Jan., 1973), pp. 242-246
DOI: 10.2307/2424157
Stable URL: http://www.jstor.org/stable/2424157
Page Count: 5
  • Read Online (Free)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
Foraging Success of Cattle Egrets, Bubulcus ibis
Preview not available

Abstract

Comparisons of cattle egrets (Bubulcus ibis) foraging with cows and alone show that those foraging with cows capture more food items and take fewer steps to do so. Egrets are about 3.6 times as efficient when foraging with cows as when foraging alone. Cattle egrets foraging behind moving farm machinery capture food at about the same rate as those foraging with cows but they take more steps. Foraging with farm machinery is more efficient than foraging alone. The association of cattle egrets with cows clearly is advantageous to the egret but the possible beneficial effects to cows have not been shown.

Page Thumbnails

  • Thumbnail: Page 
242
    242
  • Thumbnail: Page 
243
    243
  • Thumbnail: Page 
244
    244
  • Thumbnail: Page 
245
    245
  • Thumbnail: Page 
246
    246