Monday, January 9, 2012
Northern Hawk Owl
The Northern Hawk Owl (Surnia ulula) normally lives in the boreal forests of the circumpolar regions of the northern hemisphere. It is usually non-migratory and is not seen in the lower 48 states. However, occasionally it will extend down south into upper Minnesota and other states in the northern United States. The winter irruptions is thought to correlate with high reproductive successes and decrease prey availability. This is the same reasoning that we are having such an irruption of snowy owls into the United States It has been found in New England, in all of the northern states.
The Northern Hawk Owl is primarily diurnal and its behavior is different compared to other northern hemisphere owls. Its behavior resembles more that of the accipiter hawks, and with its long tail, it has been related to the Cooper's Hawk. It will perch atop prominent trees where it uses its keen hearing and sight to locate prey.