A total of 25 species of birds were observed at the Tantiusques during the a breeding bird survey which was conducted in 2008. Of the species observed, six are listed as priority species. The most common species reflect the common habitat at the reservation which is forest, including areas of dense understory. No state-listed rare species were observed on the property. Few wide-ranging, or area-sensitive species were observed. These include raptors and larger birds such as turkeys and pileated woodpecker which roam over hundreds of acres as well as smaller species, which only nest in large blocks of habitat.