Peracute mortality in Common Cranes (Grus grus)

Out of a nonbreeding group of cranes, 10 birds died peracutely at the end o f April 1998. The pathological investigation showed changes in the intestin e, liver and kidneys caused probably by an intoxication; but corresponding analyses did not result in a specified poison. The proof of E. coli, Cl. pe rfringens and Campylobacter jejuni is to be interpreted as a subordinate re sult. 7 of 8 cranes had a low to high infestation with endoparasites (Porro caeum spp., Eimeria pusilla, Echinostoma spp.). 5 of 8 birds showed leaness , possibly as a result of the migration exertion. Further on, the analysis results of a 9th crane found at another place are included in this paper.