Search for: [Abstract = "The aim of the study was to contribute the knowledge about the coincidence and species selectivity of bird parasites. The subject of our study were Chaffinches captured in Masurian Lake region \(NE Poland\) from 1996 to 1998. Each bird caught was visually examined for the presence of ticks. Birds' droppings and small volumes of birds' blood were collected in order to ascertain the presence of coccidia and blood parasites. Additionally the presence of bacteria Borrelia burgdorferi \- the causative agent of Lyme borreliosis in birds' blood was measured with the nested\-polymerase chain reaction method. In total amount of 225 Chaffinches were captured. 44% of them were infested by ticks belonging to Ixodes ricinus species \(larvae and nymphs\) only. Coccidia from genus Isospora were found in 80% \(n = 35\) of birds. Protozoans from genus Haemoproteus were ascertained in 53% \(n = 59\) of Chaffinches and bacteria B. burgdorferi was found in 12.7% \(n = 166\) of the birds. Three groups of parasites \(I. ricinus, Isospora sp., Haemoproteus sp.\) were found together in 26% \(n = 38\) of Chaffinches whereas only 5% of the birds had no parasite infection."]

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