SEASONAL VARIATION IN ACTIVITY PATTERNS OF JUVENILE LILAC-CROWNED PARROTS IN TROPICAL DRY FOREST

We used radio-telemetry techniques to determine hourly activity patterns of 29 juvenile Lilac-crowned Parrots (Amazona finschi) during 1996–2000 in tropical dry forest of Jalisco, Mexico. Parrots had two peak activity periods—early morning and late afternoon—for both overall activity and local movem...

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Bibliographic Details
Published in:The Wilson bulletin (Wilson Ornithological Society) 2005-09, Vol.117 (3), p.291-295
Main Authors: SALINAS-MELGOZA, ALEJANDRO, RENTON, KATHERINE
Format: Article
Language:English
Subjects:
Amazona
Behavior
Birds
CONTENTS
Dry forests
dry season
Dry seasons
Food availability
Foraging
forests
habitat preferences
juveniles
Observations
Parrots
radio telemetry
Radio transmitters
Rainy seasons
seasonal variation
surveys
Telemetry
temperature
wet season
Wildlife habitats
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Summary:We used radio-telemetry techniques to determine hourly activity patterns of 29 juvenile Lilac-crowned Parrots (Amazona finschi) during 1996–2000 in tropical dry forest of Jalisco, Mexico. Parrots had two peak activity periods—early morning and late afternoon—for both overall activity and local movement. Individuals were generally inactive and did not change location for 5–6 hr during the middle of the day. Parrots were more active in the dry season than in the rainy season, although movements resulting in a change of location did not vary between seasons. Seasonal variations in activity of Lilac-crowned Parrots may be related to variations in food availability or temperature. Activity patterns of parrots need to be considered when evaluating habitat use or survey data.
ISSN:0043-5643
2162-5204
DOI:10.1676/04-096.1