Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Health status of free-living pigeons in the city of Santiago.

Abstract

Health status of 100 free-living urban pigeons (Columba livia) from the city of Santiago, Chile, was evaluated between March 1996 and March 1997. Negligible antibody titres (1 to 3 log2) against paramyxovirus (PMV) serotype 1 were detected in 22% of the birds. No pigeons had antibodies against PMV serotype 7 and avian influenza. Salmonella spp. belonging to serogroups B and D were isolated from the intestinal tract of 3 pigeons (3%). Haemoproteus columbae, Plasmodium spp. and Leucocytozoon spp. were not detected. Trichomonas gallinae was detected in 11% of pigeons without clinical signs or gross pathological changes at PM examination. Columbicola columbae and Campanulotes bidentatus compar were detected in 67% of the birds and 1% harboured the mite Laminosioptes cysticola. Seven species of nematodes were identified of which Tetrameres spp. was commonest (14%). Other nematodes included Capillaria annulata (1%), C. columbae (11%), C. obsignata (1%), Ascaridia columbae (5%), Dispharynx spiralis (2%) and Gongylonema ingluvicola (2%). The only Cestoda species isolated from one pigeon was Aporina delafondi. No trematodes were detected.