Table 1.

Parameters and values used in the model. (Density-dependent values based on Sutherland (1998).)

parameter	default value	description
d	0.995	density-independent per capita survival (winter)
d′	0.00005	density-dependent per capita survival (winter)
δ	1.01	degree of asymmetric competition (winter)
bR	2.0	density-independent per capita breeding success at resident site
$b_{\text{R}}^{\prime }$	0.0001	density-dependent per capita breeding success at resident site
bM	3.0	density-independent per capita breeding success at migratory site
$b_{\text{M}}^{\prime }$	0.0001	density-dependent per capita breeding success at migratory site
S	n.a.	density-independent per capita survival during migration