Tuesday, September 28, 2010
Due to their sap-sucking habits, sapsuckers depend an flowing sap. They are, therefore, our most migratory woodpecker. Sapsuckers breed across Alaska, Canada, and the northern United States. They winter in the southeastern United States, Mexico, Central America, and the West Indies. (Individuals breed as far south as southeastern Minnesota and will occasionally attempt to winter here.) Females winter further south than do males (most birds in Central America are females, most in central regions of the United States are males).
Males do the lion's share of breeding duties. They stake breeding territories, pick and do most of the excavation of the nests, share egg incubation, and provide all the nighttime care of the young. The males also do most of the nest cleaning and feeding of the young. If one parent dies, young are most likely to survive if they are raised by the male (Smithsonian National Zoological Park).
Posted by Dan Tallman at 2:40 PM