e-bird can be an important source of information regarding bio-diversity before and after restoration.

Only six restoration sites currently have enough post-restoration history to support any meaningful trend analysis. Tidmarsh is the strongest example. Multiple wetland-associated species show increasing trends there, and because the site was already well covered by eBird before restoration, those increases are less likely to be explained simply by increased birding effort. These data can become more meaningful in the regional context when combined with data from groups such as the Cape Cod Waterfowl Census data.