| A species of territorial songbird colonizes a vacant region to which there is no further immigration. |
| Boreal Chickadees are one of only a few species of songbird that are year-round residents in boreal forest. |
| Anything to avoid another night listening to Jennifer's account of how she catalogued every songbird in Ambridge on the website that day. |
| Human beings suffered terribly, as did songbird populations, old-growth forests, fur seal colonies, and fragile watersheds. |
| Arguably the best songbird, the shama is a forest dweller and difficult to spot. |
| But a dam upriver would have caused greater flooding in the Raspaculo, where the threatened keel-billed motmot, a bright-green songbird, nests. |
