The Four Keys to ID
- Size & Shape
A fairly large nightjar, with a long tail, long, rounded wings, small head, and large eyes.
Relative Size
Larger than a Common Nighthawk, smaller than a Chuck-will’s-widow.
between robin and crowMeasurements
- Both Sexes
- Length: 11.0-11.8 in (28-30 cm)
- Weight: 1.9 oz (53 g)
- Color Pattern
- Behavior
- Habitat
Regional Differences
Ornithologists have recognized up to six subspecies between Texas (subspecies merrilli) and Argentina (subspecies derbyanus) that differ only subtly in size and tones of plumage.