How to identify the Resplendent Quetzal

To correctly identify the Resplendent Quetzal (Pharomachrus mocinno), check each of these features. Birds can be tricky: habit, habitat, and call often confirm a sighting that a single photo cannot.

Size at a glance

Length

36-40 cm (14-16 in) excluding tail streamers; male's tail streamers can add up to 65 cm (26 in)

Wingspan

30-36 cm (12-14 in)

Weight

180-210 g (6.3-7.4 oz)

Physical features to check

1. 1

   Plumage

   Overall feather coloration and pattern.

   Males are brilliant iridescent green on the head, back, wings, and upper tail coverts, which extend into spectacular streamers. The breast and belly are vivid crimson. A white undertail is visible in flight. Females are duller, with a bronze-green head, greyish-brown breast, and a shorter, barred tail. Both sexes have a metallic green crest.

2. 2

   Beak shape

   Shape and color of the bill: a key field mark.

   Short, stout, and yellow in males, dark grey to black in females. Slightly hooked at the tip.

3. 3

   Eye color

   Iris color and any distinctive eye markings.

   Dark brown, surrounded by a yellow orbital ring in males, less prominent in females.

4. 4

   Leg color

   Leg and foot color.

   Greyish-brown to black.

5. 5

   Distinguishing features

   Standout features that separate this species.

   Males are unmistakable due to their incredibly long, flowing iridescent green tail streamers. Both sexes have a distinctive metallic green crest and a vibrant red belly. Their upright posture and broad, rounded wings are also characteristic.

6. 6

   Juvenile appearance

   How young birds differ from adults.

   Juveniles resemble females but are generally duller, with less defined coloration and shorter tail feathers. Young males gradually develop their elongated tail streamers and brighter plumage over their first few years.

7. 7

   Seasonal changes

   Plumage variation between breeding and non-breeding seasons.

   No significant seasonal plumage changes, but the male's tail streamers are at their longest and most pristine during the breeding season and can become worn or broken outside of it.

8. 8

   Sexual dimorphism

   How males and females differ.

   Pronounced. Males possess elongated upper tail coverts (streamers) up to 65 cm long, a bright yellow bill, and a more vibrant green and red plumage. Females lack the long streamers, have a dark bill, a duller bronze-green head, and a greyish-brown breast with some green mottling, and a barred undertail.

Key field marks

• Male's Tail Streamers. The most definitive field mark for males is the incredibly long, flowing iridescent green upper tail coverts that extend far beyond the actual tail feathers. No other bird in its range has such a feature.
• Plumage Coloration. Look for the brilliant iridescent green on the back and head, contrasting with a vivid crimson breast and belly. Females are duller but still show green and red, with a barred undertail.
• Crest and Bill. Both sexes have a metallic green crest. Males have a bright yellow bill, while females have a dark bill. This is a key distinction between the sexes.
• Habitat and Behavior. Search in dense, humid cloud forests at mid-to-high elevations. They often perch upright and motionless for long periods, making them difficult to spot despite their bright colors. Listen for their distinctive, mournful calls.
• Flight. Observe their undulating flight pattern. The male's long streamers are particularly noticeable in flight, creating a unique silhouette.

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