Bird flocks were observed at Barba, Costa Rica, from November, 1967, until June, 1968. A total of 364 flocks was analyzed as to: whether they were single or mixed species flocks, species composition, habitat preference, vertical stratum preference, seasonal occurrence, and disassociation. Possible factors involved are discussed.
Proceedings of the Iowa Academy of Science
©1968 Iowa Academy of Science, Inc.
Mlecko, Brian E.
"Notes on the Birds of Costa Rica with Special Emphasis on Flocking,"
Proceedings of the Iowa Academy of Science, 75(1), 457-462.
Available at: https://scholarworks.uni.edu/pias/vol75/iss1/59