The tufted titmouse gathers food from the ground and from tree branches. It eats berries, nuts, insects, small fruit, snails, and seeds. Caterpillars constitute a major part of its diet during the summer. Titmice will stash food for later use. The titmouse can demonstrate curiosity regarding humans, and will sometimes perch on a window ledge and seem to be peering into the house. It is a regular visitor around bird feeders. Its normal pattern is to scout a feeder from cover, fly in to take a seed, then fly back to cover to eat it.
Song sparrows typically learn their songs from a handful of other birds that have neighboring territories. They are most likely to learn songs that are shared between these neighbors. Ultimately, they will choose a territory close to or replacing the birds that they have learned from. This allows the song sparrows to address their neighbors with songs shared with those neighbors.
As with most other blue-hued birds, the blue jay’s coloration is not derived from pigments but is the result of light interference due to the internal structure of the feathers; if a blue feather is crushed, the blue disappears because the structure is destroyed. This is referred to as structural coloration.
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