Which naturalist first cataloged the species as *Motacilla trochilus* in 1758?
Answer
Carl Linnaeus
Carl Linnaeus was the Swedish naturalist responsible for the original formal scientific naming of the Willow Warbler. This initial cataloging occurred in 1758 within the tenth edition of his influential publication, *Systema Naturae*. Linnaeus did not, however, place it in its modern genus, *Phylloscopus*; instead, he assigned it the binomial name *Motacilla trochilus*, grouping it taxonomically with the wagtails and pipits, which was a common practice for grouping small, active insectivores at that time. This placement was later revised after further scientific consideration.

Related Questions
Which naturalist first cataloged the species as *Motacilla trochilus* in 1758?What is the literal meaning of the genus name *Phylloscopus* derived from Ancient Greek words?What geographical region is the breeding ground for the subspecies *P. t. yakutensis*?How is the Willow Warbler's song characterized in contrast to the Chiffchaff's call?What was the initial binomial name given to the species by Carl Linnaeus?Which broader family name was the *Phylloscopidae* family historically subsumed within?What pattern describes the change in plumage color across Willow Warbler subspecies from west to east?Who introduced the genus *Phylloscopus* to which the Willow Warbler now belongs?To which vast order of birds, representing all perching birds, does *P. trochilus* belong?What is the meaning of the Ancient Greek specific epithet *trochilus*?