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Food habits of nesting prairie falcons in Campbell County

Posted date: June 15, 2016
Publication Year: 
1989
Authors: Squires, John R.; Anderson, Stanley H.; Oakleaf, Robert
Publication Series: 
Scientific Journal (JRNL)
Source: Journal of Raptor Research. 23(4): 157-161.

Abstract

Fifteen species of prey were utilized by nesting Prairie Falcons (Falco mexicanus) as determined through pellet analysis. Thirteen-lined Ground Squirrels (Spermophilus tridecemlineatus), the most common prey, were present in 91% of the pellets, followed by Western Meadowlarks (Sturnella neglecta) which were present in 56% of pellets. Horned Larks (Eremophila alpestris) and Lark Buntings (Calamospiza melanocorys) were found in 23% and 12% of the pellets, respectively. Additional prey species were present in low frequencies (≤55%). Eighty-nine percent of pellets contained both bird and mammal remains. Four percent of pellets contained only bird remains while 7% contained only mammalian remains.

Citation

Squires, John R.; Anderson, Stanley H.; Oakleaf, Robert. 1989. Food habits of nesting prairie falcons in Campbell County. Journal of Raptor Research. 23(4): 157-161.