Keywords
Abstract
We examined the productivity of Tyto alba in nest boxes in Pampean agrosystems oí Argentina. Nest boxes were set up in trees in Diego Gaynor, Buenos Aires Province. Mean clutch size was 5.6 ± 0.5 eggs, mean hatching per nest was 4.4 ± 1.1, and reproductive success was 4.4 fledges/clutch. No mortality of chicks was recorded. Productivity in nest boxes was greater than in natural nests (the latter based on results obtained from this study and from past studies). Twenty nine percent of the mortality which occurred in the natural nests was caused by the low quality of nest sites. Thus, the quality of nest sites may be manipulated, by setting nest boxes, to increase reproductive success of T. alba in Pampean agrosystems.
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