Птицы Америки
When John James Audubon arrived in Liverpool in July 1826 Traill helped him to find a publisher for his "The Birds of America". Audubon named the Traill's flycatcher after him, which at one time referred to a species which included both the willow flycatcher ("Empidonax traillii") and the alder flycatcher ("Empidonax alnorum").