Comments: Open situations, less frequently in partly open habitats, frequently near water (AOU 1983). Wintering concentrations often associated with sugar cane fields (Hilty and Brown 1986, Ridgely and Tudor 1989). Nests in barns or other buildings, under bridges, in caves or cliff crevices, usually on vertical surface close to ceiling. Commonly reuses old nests. Usually returns to same nesting area in successive years; yearlings often return to within 30 km or closer to natal site (Turner and Rose 1989, Shields 1984).
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