Gow, Elizabeth A.; Wiebe, Karen L.; Fox, James W.. 2015 Cavity use throughout the annual cycle of a migratory woodpecker revealed by geolocators. Ibis, 157 (1). 167-170. 10.1111/ibi.12206
The importance of cavities as roost sites in migratory species is often unknown because it is challenging to monitor cavity use during the non-breeding period. We documented cavity use throughout the annual cycle of a woodpecker using light-level geolocators. Northern Flickers Colaptes auratus spent 63–90% of nights roosting in a cavity throughout the year, including during migration. The high frequency of year-round cavity use by Flickers suggests that cavities provide benefits beyond nest-sites. Our work highlights the potential use of geolocators to examine cavity use.
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