Projects

Riparian Swallow Surveys

Bank Swallow

MNHO is excited to announce the launch of a new research project: the Maine Riparian Swallow Survey. The primary focus of this effort will be to document Bank Swallow distribution, abundance, and habitat use along Maine’s waterways. Beginning in 2026,…

Midcoast Kestrel Project

American Kestrel

In his 1949 book, Maine Birds, biologist Ralph S. Palmer described the American Kestrel— then called the “Northern Sparrow Hawk”—as “common throughout” the state and “the second hawk in [terms] of numbers.” While kestrels can still be spotted on power…

Cliff Swallow Colony Monitoring

Recent information suggests that Cliff Swallows are decreasing in Maine. Consequently, Cliff Swallows are listed as Species of Greatest Conservation Need in the Maine Wildlife Action Plan. Although likely due to a culmination of many issues, the loss of nest…

Tree Swallow Nest Boxes

Tree Swallows and nest box

Like many other aerial insectivorous birds, Tree Swallows are declining throughout their northeastern breeding range. While still widespread in Maine, Breeding Bird Survey data indicate Tree Swallow populations declined by ≈88% between 1966 and 2019. Because of this, they are…

Aquatic Plants of New England Field Guide

We’re excited to announce the upcoming publication of Aquatic Plants of New England, a new field guide by Don Cameron, Matt Arsenault, Melissa Cullina, and Glen H. Mittelhauser dedicated to the nearly 200 species of freshwater aquatic plants found throughout…

Nest Box Monitoring

Monitor a Nest Box on your property! Each spring, Maine experiences an influx of hundreds of migratory breeding birds, many of whom utilize cavities for nesting sites. Our state, with its rich mosaic of different habitat types, provides suitable breeding…

Nightjar Monitoring

Maine’s Eastern Whip-poor-wills and Common Nighthawks have undergone significant declines in recent years and MNHO is partnering with Maine Department of Inland Fisheries and Wildlife and the Biodiversity Research Institute to try to figure out why and what can be done.