| The male is duller in fresh nonbreeding plumage, with whitish tips on many feathers. |
| A general increase in all classes of nonbreeding seals is perhaps the most obvious comparative result of the census. |
| In many taxa, however, including all eusocial vertebrates and many insects, nonbreeding or subordinate group members are potentially capable of reproduction. |
| Conservation implications of multiple habitat use by Northern Waterthrushes during the nonbreeding season. |
| In the last 40 years, the nonbreeding ranges of many North American birds have shifted poleward in response to warming winter temperatures. |
| Females and nonbreeding males are pale brown or olive green, often with two darker stripes on the back. |
