| prevalence of haematozoa in birds of prey in catalonia, north-east spain. | blood samples from birds of prey, 95 strigiformes and 190 falconiformes, were examined for the presence of haematozoan parasites. the birds had been admitted to a raptor recovery centre in catalonia, north-east spain. parasites were counted in positive smears. a second blood sample was obtained from 99 birds at least seven days after their arrival at the centre. haematozoa were detected in all seven species of strigiformes and in nine of 19 species of falconiformes. the overall prevalences in th ... | 1999 | 10399244 |
| parasitic helminths in the digestive tract of six species of owls (strigiformes) in spain. | a survey was carried out in catalonia, spain to determine the prevalence of parasitic helminths infesting the digestive tract of nocturnal raptors (strigiformes). one hundred birds belonging to six owl species were examined. the number of birds examined ranged between three and 30. the overall level of infestation was 65% and the most frequent helminths present were nematodes, followed by trematodes, cestodes and acanthocephalans. strigiformes showing the highest levels of infestation were littl ... | 2004 | 14975393 |