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Even within the same family, related species can have a vastly different appearance. One of the parts of a bird that can vary is their beaks, since the shape has evolved around their primary food source. One group that this can be seen in are finches. Pine siskins, a small boreal finch, have thin beaks,…
Migration is described as a yearly seasonal movement of a population of animals, in this case birds, generally north to south, to and from breeding and wintering grounds. Many are familiar with an overhead passing form of canada geese noisily flying over in their typical v formation. Seeing these large flocks form twice a year,…