(Accipiter striatus) DURING FALL MIGRATION

ABSTP, ACT.--Packed cell volume (%), total solids (g/dl), white blood cell count (cells/tl), differential and absolute white blood cell counts, and prevalence of hemoparasites were determined for 85 healthy sharp- shinned hawks (Accipiter striatus) during the 1991 fall migration. The packed cell volume (47.6 + 6.73%), total solids (2.83 _+ 0.58 g/dl) and white blood cell count (12 900 + 7310 cells/tl) are within ranges reported previously for other raptors, both captive and wild. Immature birds showed a greater prevalence for the hemoparasites Hemoproteus and Leukocytozoon than adults but there was no significant difference in prevalence between males and females. These findings add to the small but growing data base on hematology of birds of prey.