Table 3.

Ecological traits identified by logistic regression as risk factors for undergoing declines >50% in mean annual counts among marine birds in the Salish Sea (Pacific Northwest of North America)

Ecological trait or risk factor	Odds ratio	95% CI	P
Foraging strategy
Diving (yes/no)	11.07	4.6 − 33.2	<0.001
Prey choice
Forage fish (yes/no)	7.66	3.9 − 15.8	<0.001
Demersal fish (yes/no)	0.06	0.03 − 0.14	<0.001
Breeding
Locally (yes/no)	0.33	0.15 − 0.69	0.003