I have seen rufous-collared sparrows regularly singing in Costa Rica in January and Peru in October which is outside of the seasons mentioned by Ted. So many that I have a hard time making much out of the spring/summer idea. I disagree with the null hypothesis of being wild. I feel the null hypothesis should be escapee or release unless there is solid evidence to the contrary. This was the approach taken with the thick-billed parrot in New Mexico recently. The Tufted Duck several years ago would likely have been assumed to be a wild bird until it was enticed off the water with feed and a ty-wrap was seen on the leg. Norm Erthal Arvada, CO
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