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USGS · 5222637

Survival and causes of mortality in juvenile Puerto Rican parrots

G.D. Lindsey·W.J. Arendt·Jan Kalina
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Abstract

Fifteen juvenile Puerto Rican Parrots (Amazona vittata) from wild nests in 1985, 1986 and 1987 were radio monitored an average of 110 +- 15.9 (SE) d (range 4-209 d) post-fledgling. Minimum survival was 67% (n = 3) in 1985, 100% (n = 4) in 1986 and 43% (n = 7) in 1987. Most mortality (three of five deaths) occurred during the first 35 d following fledgling. A major cause of mortality was predation by raptors. This research shows that additional studies are needed to define mortality causes to juvenile and adult free-flying Puerto Rican Parrots and to develop management guidelines to increase survival.

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G.D. Lindsey, W.J. Arendt, Jan Kalina. 1994. Survival and causes of mortality in juvenile Puerto Rican parrots. https://pubs.usgs.gov/publication/5222637

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