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Interstate 80 was 0.8 km to the north, and an occupied cabin was 0.2 km south of the roost <br />(Lingle et al. 1984). <br />At the other roost site (Crane sighting number 8513-18) in Buffalo county near Rowe <br />Sanctuary the closest dwelling was .08 km from the roost site (Lingle et al. 1986). <br />Discharge <br />Flow (cfs3) was one of the parameters collected and recorded in the site evaluation data <br />provided in Table 4. <br />Land Cover Class (Vegetation) and Proximity to Other Habitats <br />Information regarding the land cover class (vegetation) and proximity to other habitats was <br />not collected with the USFWS site evaluation data. This information can be obtained using <br />data collected from vegetation surveys, and from aerial photographs. <br />Time Budgets /Activity <br />See Lingle et al 1987 in Proceedings for the 1987 International Crane Workshop. <br />Sources of Whooping Crane Mortality During Migration <br />There has been no documented incident of whooping crane mortality or injury of any sort <br />within the study area, or contract with disease from the study area. Any dead or injured bird <br />located during the Program will be reported to the USFWS per the "Field Study <br />Requirements for Avoiding Disturbance to Migrating Whooping Cranes ". Sources of <br />whooping crane mortality during migration include collision with utility lines, barbed wire <br />fences, shooting, and disease. <br />Collision with Utility Lines <br />Collision with utility lines has been the principal known cause of whooping crane mortality <br />during migration (Howe 1989, USFWS 1994, Brown and Drewien 1995, Meine and <br />Archibald (eds). 1996). Since 1956, at least 19 whooping cranes have been killed or <br />seriously injured by such collisions. In a study of radio - marked juveniles conducted in the <br />early 1980's, 2 of 9 individuals died as a result of collisions within their first 18 months of <br />life (Kuyt 1992). Collisions with barbed wire fences have also resulted in death (Allen and <br />Ramirez 1990). <br />Shooting <br />Illegal and accidental shooting has occurred along the migration routes and near Aransas <br />National Wildlife Refuge. As hunting of Sandhill Cranes has expanded in recent years, the <br />Draft Baseline Report — Whooping Crane Section 11 <br />