Table 3. Observed and expected (in brackets) number of host species breeding in forest, open habitats and wetlands in three bird fly species.

Species	Forest	Open	Wetland
O. avicularia	22 (21.9)	7 (8.4)	6 (4.7)
O. chloropus	23 (28.1)	16 (10.8)	6 (6.0)
O. fringillina	15 (10.0)	0 (3.8)	1 (2.1)