Anthracothorax nigricollis (Vieillot, 1817)

Fernandez, Juan Manuel, Thomann, Luz, Fandiño, Blas, Cajade, Rodrigo & Hernando, Alejandra, 2021, An annotated checklist of birds of Paraje Tres Cerros, Corrientes province, Argentina, Check List 17 (2), pp. 415-443 : 430

Anthracothorax nigricollis (Vieillot, 1817)

Figure 6E

Observations. ARGENTINA • 1♀; Corrientes, La Cruz, Paraje Tres Cerros; 29°06′23′′S, 056°55′27′′W. We re- corded a female near the farmhouse in September 2018, feeding on the flowers of Callistemon (R.Br.) sp. along with individuals of Chlorostilbon lucidus (D’Orbigny & Lafresnaye, 1838) .

Identification. Relatively rare in Corrientes. Slightly decurved bill. Purplish tail. Female with white underparts and a black central stripe. Easily distinguished from other hummingbird species on the study site.