Brewster's Warbler (hybrid)
Vermivora chrysoptera x cyanoptera (F1 hybrid)
1 Adult Male
Robert C Stein
Eugene S Morton
11 May 1964
New YorkTompkins County
- S. End Michigan Hollow; Danby Twp.
- NAGRA III-B
- Parabola 91.4cm/30.5cm (36in/12in)
PROBABLY VERMIVORA "LEUCOBRONCHIALIS" [= "Brewster's" Warbler]. MOSTLY VERMIVORA PINUS CHARACTERS. FIRST HEARD GIVING V. PINUS LIKE SONGS.
BNA: Twenty-four "Type I" songs, almost all of which are typical of V. chrysoptera song with four notes ("zeee bee bee bee"). Some songs have only three notes ("zeee bee bee" - 0:06, 1:20, 3:02, 3:40) and three songs are intermediate between those of V. chrysoptera and V. pinus (contrary to BNA - 0:39, 0:58, and 4:11). The "chip" notes heard in the middle part of this recording (2:07-2:24) may also have been given by this bird.