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Snowy owl predation on lapland longspur nestlings recorded on film

January 1, 1973

 During the summer of 1971 I investigated the breeding biology of the Lapland Longspur, Calcarius lapponicus, near Barrow, Alaska. To obtain data on incubation and feeding patterns of nesting longspurs, time-lapse cameras (Minolta Autopak-8 D6 super-8 movie cameras equipped with an Intervalometer-P time-lapse device) were positioned at several nests throughout the nesting season with an exposure interval of either 8 or 30 seconds. At 07:00 on 14 July a Snowy Owl, Nyctea scandiaca, took the three largest of four young at a nest being monitored at 30-second intervals (Figure 1). The nestlings were 4, 6, 7, and 8 days posthatching and weighed approximately 12, 15, 20, and 20 g respectively on 13 July.

Citation Information

Publication Year 1973
Title Snowy owl predation on lapland longspur nestlings recorded on film
DOI
Authors T. W. Custer
Publication Type Article
Publication Subtype Journal Article
Series Title The Auk
Series Number
Index ID 1003125
Record Source USGS Publications Warehouse
USGS Organization Upper Midwest Environmental Sciences Center