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Bald Eagle preferred habitat includes reservoirs and rivers. In winter, they may also occur locally in semi deserts and grasslands, especially near prairie dog towns. In the last several yeazs, there have been 10 or more breeding pairs in Moffat, Rio Blanco, Mesa, Montezuma, La Plata, Archuleta, Adams, and Weld counties. This species is known to occur in Routt County and its abundance is unknown. Burrowing Owl preferred habitat includes grasslands in or near prairie dog towns. This species is a summer resident, mostly in eastern Colorado, and is known to occur in Routt County though its abundance is unknown. Western Yellow-Bil]ed Cuckoo preferred habitat includes lowland riparian forests and urban areas with tall trees. It is a rare spring and fall migrant and summer resident on eastern plains west to Morgan and Otero counties, and rare west to foothills. This species is an uncommon local summer resident in western valleys, primarily from Mesa County southward. It occurs in mountain parks and in foothills and lower mountains. The numbers of this species fluctuate widely from year to year. This species is known to occur in Routt County and its abundance is considered casual and/or accidental. Ferruginous Hawk preferred habitat includes grasslands and semi desert shrub lands, and is rare in pinon-juniper woodlands. Breeding birds nest in isolated trees, on rock outcrops, structures such as windmills and power poles, or on the ground. Winter residents concentrate around prairie dog towns. Winter numbers and distribution fluctuate greatly according to the availability of prairie dogs; when a local prairie dog population dies off due to plague, hawk numbers decrease drastically. Migrants and winter residents may also occur in shrub lands and agricultural areas on eastern plains. At the same time it is a raze summer resident locally on eastern plains, and occurs very locally in Moffat and Routt counties, along the Book Cliffs, in the Graad Valley, and in the San Luis Valley. This species is known to occur in Routt County though its abundance is unknown. American Peregrine Falcon preferred habitat includes cliffs and forage over adjacent coniferous and ripazian forests. Migrants and winter residents occur mostly around reservoirs, rivers, and marshes, but may be seen in grasslands, agricultural azeas, and other habitats. This species is a rare spring and fall migrant in western valleys, foothills, lower mountains, mountain parks, and on eastern plains. It is a rare winter resident at Monte Vista National Wildlife Refuge and very rare in western valleys and on eastern plains near foothills. It is also a rare summer 2.7-20c Revised 11/06