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RAPTORS AND ‘CAMPO-CERRADO’ BIRD MIXED FLOCKLED BY Cypsnagra hirundinacea (Emberizidae:Thraupinae).

White-rumped Tanager (Cypsnagra hirundinacea) Science Article 1

abstract

Bird mixed flocks including Cypsnagra hirundinacea and Neothraupis fasciata as species with sentinelswere studied in ‘campo-cerrado’ in order to investigate the possible relationship between alertnessand the mixed flock leadership. This study was conducted from March to September 1996 and mixedflocks were observed on average for 2:30h. The time with sentinels were recorded for C. hirundinaceaand N. fasciata.

RAGUSA-NETTO, J., Rev. Brasil. Biol., 60(3): 461-467

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