Use of spatial and colour cues by foraging pine siskins (Carduelis pinus): A field study |
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Authors: | Jessica M Humber David R Brodbeck Ian G Warkentin |
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Institution: | aEnvironmental Science Programme, Memorial University, Corner Brook, NL, A2H 6P9 Canada;bPsychology Programme, Memorial University, Corner Brook, NL, A2H 6P9 Canada;cDepartment of Psychology, Algoma University, Sault Ste. Marie, ON, P6A 2G4 Canada |
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Abstract: | Pine siskins (Carduelis pinus) frequently forage at known high quality food supplies such as backyard feeders. In this field study, pine siskins visited backyard feeders of differing colour and spatial position. The three feeders contained varying amounts of food in a ratio of 3:2:1. The birds quickly distributed their visits in this ratio to the three feeders. During unbaited tests, two feeders on a given day had their positions swapped. The siskins appeared to primarily use both large-scale spatial or distal cues when foraging as well as local colour cues. |
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Keywords: | Spatial memory Bird memory Animal cognition |
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