Avtor/Urednik		Tome, Davorin
Naslov		Activity of incubating female long-eared owls as measured by fluctuations in nest temperatures
Tip		članek
Vir		J Raptor Res
Vol. in št.		Letnik 32, št. 2
Leto izdaje		1998
Obseg		str. 170-4
Jezik		eng
Abstrakt		In 1993 and 1997, activities of incubating Long-eared Owls (Asio otus) were measured in the Ljubljansko barje area (Slovenia). Fluctuations in nest temperature were used to record movements of females in three nests. The owls were about two times less active during the day than during the night. Approximately 10% of the movements resulted from feeding activiries and and the remainder were due to different movements on the nest. There were two prominent peaks in activity at dawn and dusk with less pronounced bursts in activity every 2-4 hr. These bursts of activiry may have coincided with increased activity of voles which were the main prey.
Deskriptorji		BIRDS NESTING BEHAVIOR ACTIVITY CYCLES BEHAVIOR, ANIMAL TEMPERATURE MOVEMENT