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Gulf of Maine Library Collection

Identification of Important Habitats in the Lower Casco Bay (Maine) Watershed

Chapter 9. Bald Eagle Essential Habitats

GENERAL: The Casco Bay study area includes several bald eagle (Haliaeetus leucocephalus) nests. We lacked information on parameters to define the associated foraging habitat. Therefore, for this analysis, we included only nest site zones consisting of uplands within areas designated by MDIF&W as Essential Habitats.

DATA SOURCES: Data for the bald eagle coverage were obtained from the MDIF&W 1994 Atlas of Essential Wildlife Habitats for Maine's Endangered and Threatened Species. This source includes both active nest sites and currently inactive sites which were used within the previous 5 years.

MAPPING OF HABITATS: Essential Habitats include the area within 1320' (402 m) of each nest (MDIF&W 1995). Upland areas within this zone were scored 8 as suitable habitat; inclusions which are currently developed were scored 0 (Figure 9).

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