Table 3. Defending vs. Chased bird trajectories.

	Defending bird trajectories (n = 31)	Chased bird trajectories (n = 31)	Statistical comparison (paired t-test)
Mean of maximum flight speeds (m s-1)	9.2 ± 1.6	6.3 ± 1.3	p < 0.0001
Maximum angular velocity (degrees s-1)	322.6 ± 142.4	334.8 ± 149.2	p = 0.7383
Flight speed at maximum angular velocity (m s-1)	3.9 ± 2.6	2.2 ± 1.4	p = 0.0006
Maximum gravity-adjusted centripetal force (body weights)	2.1 ± 0.7	1.6 ± 0.7	p = 0.0051
Flight speed at maximum gravity-adjusted centripetal force (m s-1)	6.2 ± 2.3	4.2 ± 1.5	p < 0.0001