Does Proximity to Wetland Shrubland Increase the Habitat Value for Shrubland Birds of Small Patches of Upland Shrubland in the Northeastern United States?

Table 4

Coefficients resulting from averaging of the best-supported regression models describing occupancy of nine bird species in relation to vegetation attributes.

Species	psi	All shrubland	Wetland shrubland	Upland shrubland
Carolina wren^1	4.89±6.82	5.37±6.22		−6.12±8.23
Cedar waxwing	−0.19±1.78	1.69±2.40	−0.15±2.04	1.91±1.86
Chestnut-sided warbler^2
Blue-winged warbler^2
Eastern towhee	−0.11±0.60	−0.70±0.84	−0.91±0.95	0.20±0.95
Common yellowthroat^2
Northern cardinal	−0.27±0.63	2.83±1.56	2.39±2.07	0.64±2.58
Song sparrow	−0.12±0.70	2.50±1.34	2.51±1.91	0.18±2.46
American goldfinch	2.31±2.96	1.50±2.53	3.32±5.31	−0.12±2.96

1Models containing percent covered by wetland shrub within 50 m did not converge.
²No models converged.
Psi: model intercept; all shrubland: percent covered by all shrubs within 50 m; wetland shrubland: percent covered by wetland shrub within 50 m; upland shrubland: percent covered by upland shrub within 50 m.