Casual stray in summer and autumn from Mexico to the southeastern corner of Arizona. Ash Canyon, Cochise Co., CA, USA.
Credit: Bill Bouton

North American field guide

Plain-capped Starthroat

Heliomaster constantii

Identification

Field notes

12 cm (5") Mexican species that strays into southeastern Arizona.

A large long billed hummer with a broad white whisker stripe. White patch on rump.

Watch and learn

Videos

2 videos
Bird Advisor Identification rules 1 variant 1 rule

These are the observation paths the Bird Advisor can use to identify this species. Each rule is an alternative match.

Plain-capped Starthroat

1 rule
Rule 1 14 criteria confidence 1
What SHAPE was the TAIL ?
Square or slightly notched at the end · Rounded at the end · Unknown
What colour was the SIDE ?
White, or pale (grayish-white) · Gray, or blue-gray · Unknown
What colour was the BACK ?
Rufous (dull-red or rust-colored) · Green · Brown, or chestnut (reddish-brown) · Gray, or blue-gray · Unknown
What colour was the BREAST ?
White, or pale (grayish-white) · Unknown
What colour was the THROAT ?
Red, or pink · Unknown
What colour was the BILL ?
Black, purple, or dark · Unknown
What SHAPE was the BILL ?
Straight and slender · Downcurved · Unknown
What LENGTH was the BILL ?
Medium · Long · Very long · Unknown
What colour were the CHEEKS ?
White, or pale (grayish-white) · Red, or pink · Green · Gray, or blue-gray · Black, purple, or dark · Unknown
What colour was the TOP of HEAD ?
Green · Gray, or blue-gray · Black, purple, or dark · Unknown
How BIG was the bird ?
Smaller than a sparrow
What TYPE of bird was seen ?
Hummingbird
WHEN was the bird seen ?
Spring · Summer · Fall
WHERE was the bird seen ?
Southwestern United States