Migration ecology of western gray catbirds

Table 4 Gray Catbird (Dumetella carolinensis) apparent annual survivorship model parameter estimates

Model	Parameter	Group	Estimate	Standard Error
Montana
ϕ (sex) p (site)	ϕ	Female	0.34	0.05
ϕ (sex) p (site)	ϕ	Male	0.43	0.04
ϕ (sex) p (site)	ϕ	Unknown	0.06	0.01
ϕ (sex) p (site)	p	MPG Ranch	0.77	0.07
ϕ (sex) p (site)	p	Other	0.34	0.10
British Columbia
ϕ (sex) p (sex)	ϕ	Female	0.61	0.06
ϕ (sex) p (sex)	ϕ	Male	0.64	0.05
ϕ (sex) p (sex)	ϕ	Unknown	0.20	0.20
ϕ (sex) p (sex)	p	Female	0.25	0.07
ϕ (sex) p (sex)	p	Male	0.72	0.07
ϕ (sex) p (sex)	p	Unknown	0.35	0.13

Parameter estimates for the top apparent annual survivorship models for Gray Catbirds in British Columbia and Montana. Cormack-Jolly-Seber models were used, which include annual survivorship (ϕ) and detection probability (p)

ISSN: 2051-3933