Table 1.

Overview of keel bone findings in the jungle fowl.

	Hens 1			Roosters 2
	n	%	95% CI 3	n	%	95% CI
Fractures
Yes	1	8.3%	0–48%	0	0%	-
No	11	92%	52–99%	17	100%	-
Deviations 4
Yes	10 3	83%	47–97%	1 3	5.9%	0.7–36%
No	2	17%	3.5–52%	16	94%	64–100%

¹n = 12; ² n = 17; ³ Confidence interval; ⁴ all observed deviations were very slight.