There are currently four colonies with a total of 151 breeding pairs in the state of Maine. On Petit Manan alone, it’s been about a year since the last roseate tern was sighted and even longer since they last successfully nested.
Roseate terns have either a full black or mostly black bill, a whiter coloration and considerably longer tail feathers then wing feathers in comparison to the arctic and common terns. They tend to nest along the vegetation line close to rocks of the intertidal zone. If not careful, too much activity could cause them to abandon their nests considering their sensitivity to human presence.
This year, we have two confirmed nesting pairs and another possible sighting further along the intertidal. The two nesting pairs each have two healthy chicks which we hope will fledge successfully. Their chicks have black legs and dark mottled down with fine black spots as opposed to the common and arctic tern chicks which usually have orange or pink legs with brighter down and black spots.
Hopefully this means more nesting Roseate terns on Petit Manan island in years to come.