67. Klucsarits, J. R., B. Robertson, and S. Robertson. 1997. Breeding success of American Kestrels nesting in boxes in eastern Pennsylvania, 1987-1994. Pennsylvania Birds 11:138-140. | Hawk Mountain Sanctuary: Learn Visit Join

67. Klucsarits, J. R., B. Robertson, and S. Robertson. 1997. Breeding success of American Kestrels nesting in boxes in eastern Pennsylvania, 1987-1994. Pennsylvania Birds 11:138-140.

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