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Archive for March 17, 2014

How Are Red-winged Blackbirds Surviving?

3-17-14 red-winged blackbird2 IMG_2063The first reports of Red-winged Blackbird sightings are coming in, and with two feet of snow in some places, frigid temperatures, and very few insects in flight, one can’t help but wonder how they are surviving. A number of factors allow Red-wings to sustain themselves in these conditions, including the fact that their foraging is not restricted to one habitat – they look for food in marshes, pastures, overgrown fields, shores of lakes and ponds and windblown, exposed corn fields and crop lands. Secondly, they look for food in and on a variety of substrates, including but not limited to tree trunks and vegetation, which are accessible even with snow on the ground. Thirdly, they are very adept at gaping – forcing their bill open against the resistance of bark, etc. in order to reach into the crooks and crannies where insects are overwintering. And lastly, their diet fluctuates with the food that is available. During the breeding season, the majority of a Red-winged Blackbird’s diet is insects, and during fall, winter and early spring, Red-wings are primarily plant eaters – weed seeds, tree seeds and in agricultural areas, grains. In many ways, Red-winged blackbirds are more successfully adapted than humans are to this interminable winter!

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