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).
alder | Alder | Asian Paradise Flycatcher | European Pied Flycatcher | Ochre-faced Tody-Flycatcher | Collared Flycatcher | Asian Brown Flycatcher | Willow Flycatcher | Tyrant flycatcher | Red-bellied Paradise Flycatcher | Alford & Alder | Alder Flycatcher | Willow flycatcher | Tickell's Blue Flycatcher ''Cyornis tickelliae | Spotted Flycatcher | Rufous-vented Paradise Flycatcher | Ray Alder | Old World flycatcher | Narcissus Flycatcher | Joshua Alder | Jonathan Alder | Humblot's Flycatcher | HMS ''Flycatcher'' | HMS Flycatcher | flycatcher | Diels–Alder reaction | Chapin's Flycatcher | Apical Flycatcher | Alder Valley |