“Teal” or “Teil”—Which to use?

Chilean teal, Anas flavirostris flavirostris (Vieillot, 1816)…
…also represented Victoria in the Teal Cup that year.
…Byron Bach, Carl Gorodetzky, Christian Teal, Gary Vanosdale, George Binkley, Lennie…
Teal Bunbury
Sharp-winged teal, Anas flavirostris oxyptera (Meyen, 1834)…
…represented Western Australia in the Teal Cup and was selected in…
She is medium height with teal messy hair, a suit consisting…
The Adventures of Abney & Teal – children's
…as heavy as the modern teal.
…of the very different-looking green-winged teal.

…Buch 2, Chaetognathen und Hemichordaten, Teil 2: Hemichordata, bearbeitet von Dr.…
1, Crustacea, Buch 6, Teil 2: Stomatopoda, bearbeitet von Heinrich
…Buch 2, Chaetognathen und Hemichordaten, Teil 1: Chaetognatha, bearbeitet von Dr.…
…Heinrich / Symphoniae Sacrae I, Teil 2 SWV 267–276 / 10…
1, Crustacea, Buch 2, Teil 2: Ostracoda.
1, Crustacea, Buch 3, Teil 3: Cirripedia, bearbeitet von Paul…
1, Crustacea, Buch 4, Teil 2: Syncarida, bearbeitet von R.…
1, Crustacea, Buch 3, Teil 4: Ascothoracida, bearbeitet von Paul…
3, Annelides, Buch 4: Hirudineen, Teil 1–2, bearbeitet von Dr. K.…
3: Bivalvia, Teil 1–2, bearbeitet von Dr. F.…

“Teal” or “Teil”