Apanius V, Kirkpatrick C E
Department of Biology, University of Pennsylvania, Philadelphia 19104.
J Wildl Dis. 1988 Jan;24(1):150-3. doi: 10.7589/0090-3558-24.1.150.
A population of American kestrels breeding in southeastern Pennsylvania was examined for hematozoa. Haemoproteus tinnunculi infected 17 of 23 (74%) of the adults. Parasitemia ranged from two to 252, with a median of 32 infected erythrocytes per 10,000. Parasitemia and body weight of female kestrels were negatively correlated. This parasite was not observed in the six juvenile or 38 nestling kestrels examined. Trypanosoma sp. was detected by culture in three of seven (43%) adults, but not in the six juveniles and eight nestlings examined.
对在宾夕法尼亚州东南部繁殖的一群美洲隼进行了血寄生虫检查。23只成年美洲隼中有17只（74%）感染了红隼血变原虫。虫血症范围为2至252，每10000个红细胞中感染红细胞的中位数为32个。雌性美洲隼的虫血症与体重呈负相关。在所检查的6只幼隼或38只雏隼中未观察到这种寄生虫。通过培养在7只成年美洲隼中的3只（43%）检测到锥虫属，但在所检查的6只幼隼和8只雏隼中未检测到。
