Ornithologists often study breeding birds and as a result the winter ecology and social behavior of migratory birds is relatively under studied. For the past 18 years my students and I have been studying a population of golden-crowned sparrows that winter in the University of California, Santa Cruz Arboretum. Each sparrow is given a unique combination of color bands which allows us to identify individual birds in the wild and monitor their behavior and survival. Given that they survive migration and breeding, individual sparrows return winter after winter to the arboretum and flock together with the same individuals as in previous years.
Speaker: Dr. Bruce Lyon, UC Santa Cruz
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