Patla, Susan. 2005. Monitoring results of the northern goshawk nesting areas in the Greater Yellowstone Ecosystem: is decline in occupancy related to habitat change? Journal of Raptor Research. 39(3):324-334.
Patla, Susan. 2005. Monitoring results of the northern goshawk nesting areas in the Greater Yellowstone Ecosystem: is decline in occupancy related to habitat change? Journal of Raptor Research. 39(3):324-334.