Table 1. Number of pigeons according to type of pigeon, sample material and place of origin.

	Single samples		Paired samples		Place of origin				Total no. of pigeons
	C/c-swab	Liver	C/c-swab* + liver	C-swab** + liver	Berne	Greater Lucerne area**	Greater Zurich area	Various***
Feral pigeon	142	47	36	98	123	23	142	35	323
Domestic pigeon	17	2	15	0	0	8	0	26	34
Eurasian collared dove	12	1	26	0	0	2	3	34	39
Common wood pigeon	3	2	30	0	0	13	1	21	35
Total	174	52	107	98	123	46	146	116	431

*C/c-swab = combined choanal/cloacal swab; **C-swab = cloacal swab

**Lucerne, Kriens, Horw, Emmen, Emmenbruecke, Rothenburg

***More rural places as compared to the city areas within the cantons Lucerne, Obwalden, Nidwalden, Schwyz, Zug, Aargau, Solothurn, Zurich, Schaffhausen, Basel-Land, Thurgau and St. Gallen