noun
common nighthawk (Chordeiles minor)
A nocturnal bird of the nightjar family found in the Americas. The Japanese name is a direct borrowing from English 'nighthawk' with the prefix アメリカ.
アメリカヨタカは夕暮れ時に活動を始める。
The common nighthawk becomes active at dusk.
Refers to the grey nightjar (Caprimulgus indicus) native to East Asia, while アメリカヨタカ is the American species.
From アメリカ (America) + ヨタカ (nightjar). The word is a calque of the English 'common nighthawk'.