Over 169 bird species identified on the site including migratory waterfowl. Diverse habitats include: hedgerows, fields, varied aged forests, marsh, ponds and rocky ridges. Also, caves, beaver dams, streams, vernal pools and a habitat- managed powerline corridor.

Avery Farm is part of a critical large block of diverse wildlife habitats highlighted on the State of CT Natural Diversity Database maps: grasslands, hedgerows, early successional forest, oak-hemlock-hickory upland forest, Atlantic white cedar swamp, a habitat managed power utility corridor, forested peatlands, kettle type bogs, poor fens, multiple seeps, several Tier I vernal pools, Ed Lamb Brook, Haley Brook, and the southern portion of a 38 acre marsh.