

Printed on the plate
“Traill's Flycatcher”
Plant Vulgo, Sweet Gum. | Liquidamber Styraciflua.
Modern identification
Printed “Traill's Flycatcher”
Empidonax alnorum
- Judged
- Drawn before a split
- Tyrant Flycatchers · Tyrannidae
Why
Audubon's “Traill's Flycatcher” (Muscicapa traillii) is Traill's Flycatcher before the 1973 split: Halley (2025) shows that his one bird, shot at Arkansas Post on 17 April 1822 when both species are on migration there, cannot be named as an Alder or a Willow Flycatcher, so the plate is listed under both
Sources
engraved legend; Halley, Bull. B.O.C. 145(3) (2025); audubon.org; the plate
Printed “Traill's Flycatcher”
Empidonax traillii
- Judged
- Drawn before a split
- Tyrant Flycatchers · Tyrannidae
Why
Audubon's “Traill's Flycatcher” (Muscicapa traillii) is Traill's Flycatcher before the 1973 split: Halley (2025) shows that his one bird, shot at Arkansas Post on 17 April 1822 when both species are on migration there, cannot be named as an Alder or a Willow Flycatcher, so the plate is listed under both. Halley's neotype keeps the name traillii with the Willow Flycatcher
Sources
engraved legend; Halley, Bull. B.O.C. 145(3) (2025); audubon.org; the plate
Who made the plate
Drawn from Nature & Published by John J. Audubon, F. R. S. E. F. L. S. M. W. S.Engraved by R. Havell, Junr. Printed & Coloured, by R. Havell, Senr. London_1828.
- John James Audubon drew
- Robert Havell Jr. engraved
- Robert Havell Sr. printed and coloured
As the credit line gives it. More on who made these plates.