BIOL 4500 Lecture Notes - Lecture 5: Ninox, Niche Differentiation, Peripheral Vision
15 Feb 2018
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Woodpeckers: bark strippers: woodpeckers primarily feed on insects, with exceptions, red headed woodpecker will feed on insects in trees but they commonly eat by flying catching. They will sit on a branch and fly out and get flying insects (have rictal bristles for sensory to help capture prey and funnel them inn physically). They ill hunt visually on flying insects: there are certain woodpeckers that are specialists for feeding on these the tree to access these beetles. Bark beetles are found in variety of types of trees but coniferous trees tend to have them and because northern forests are primarily coniferous, they tend to have a lot of beetles there. Most woodpeckers will chip right on because the impact of the bill against the tree. Strippers do it differently, they all tap against cold could be adaptation for sub zero temperatures bird. Because: they have a different lateral chipping pattern.
