

Printed on the plate
“Yellow Willow Wren”
Sylvia Icterina
Engraved caption: Yellow Willow Wren Sylvia Icterina (Vieill.)
This identification is still open; the reasoning below says what would settle it. If you can, open an issue with the evidence.
Modern identification
Phylloscopus trochilus
- Open, leaning
- Leaf Warblers · Phylloscopidae
Why
Willow Warbler in yellow first-autumn dress, or a yellow Chiffchaff? It is a Phylloscopus, not a Hippolais: slender bill, long yellow supercilium. Pale legs and the long brow say Willow Warbler. Temminck's figures of a wing as short as the Chiffchaff's point the other way. Primary projection and leg colour on Temminck's specimen would decide. The plate is in the copy: leaf 344, engraved 'Yellow Willow Wren. Sylvia Icterina (Vieill.)', pencilled 133.
Sources
General List (vol. I); engraved caption on leaf 344 (BHL scan); Gould's text; the plate
Who made the plate
Drawn from Nature & on Stone by J. & E. Gould.Printed by C. Hullmandel.
- John Gould drew and lithographed
- Elizabeth Gould drew and lithographed
- Charles Joseph Hullmandel printed
As the credit line gives it. More on who made these plates.