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 …