Reports

Paradoxical Sleep in Two Species of Avian Predator (Falconiformes)

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Science  27 Mar 1970:
Vol. 167, Issue 3926, pp. 1754-1755
DOI: 10.1126/science.167.3926.1754

Abstract

Periods of disconjugate. and conjugate eye movements occur during the sleep cycle in Buteo jamaicensis arborealis and Herpetotheres cachinnans chapmanni. Electromyograms are essentially isoelectric throughout sleep. Slow waves appear only in short bursts of low amplitude in contrast to the long trains of high-amplitude waves reported for chickens and pigeons.