Fig. 1From: Energy state affects exploratory behavior of tree sparrows in a group context under differential food-patch distributionsBird’s-eye view of the aviary and observation room set-up (C: video cameras, G: background area, O: observers, W: dish containing water for sparrows, which also indicates the direction of west, : the parterres, : the potted plants, : small potted plants, of which two or all, depending on the experimental design, sat beside food patches covered by sand)Back to article page