Table 1.

White blood cell differentials (mean ± s.e. for each cell type) for birds viewing healthy conspecifics (control-focal, n = 9) or a cue of infection (MG-focal, n = 9).

treatment	day	lymphocytes (%)	heterophils (%)	monocytes (%)	eosinophils (%)	basophils (%)
control-focal	−5	84.6 ± 2.5	11.4 ± 2.3	3.7 ± 1.8	0.3 ± 0.2	0 ± 0
	2	82.1 ± 2.6	14.6 ± 3.3	3.1 ± 1.0	0.2 ± 0.1	0 ± 0
	6	78.8 ± 2.6	17.1 ± 3.6	3.9 ± 1.2	0.2 ± 0.1	0 ± 0
	12	82.9 ± 3.3	15.6 ± 3.3	1.4 ± 0.6	0 ± 0	0 ± 0
	24	76.8 ± 4.1	19.7 ± 3.9	2.8 ± 1.0	0.7 ± 0.3	0.1 ± 0.1
MG-focal	−5	81.2 ± 4.3	17.0 ± 4.1	1.7 ± 0.8	0.1 ± 0.1	0 ± 0
	2	74.7 ± 3.7	22.3 ± 3.6	2.7 ± 1.2	0.3 ± 0.2	0 ± 0
	6	72.3 ± 4.9	26.7 ± 5.0	0.8 ± 0.4	0.2 ± 0.1	0 ± 0
	12	70.1 ± 4.3	28.1 ± 4.6	1.6 ± 0.7	0.2 ± 0.1	0 ± 0
	24	73.2 ± 5.0	24.7 ± 5.3	1.9 ± 0.8	0.2 ± 0.1	0 ± 0