How to identify the Yellow-necked Green Pigeon

To correctly identify the Yellow-necked Green Pigeon (Treron vernans), 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

25-30 cm

Wingspan

45-50 cm

Weight

100-160 g

Physical features to check

1. 1

   Plumage

   Overall feather coloration and pattern.

   Males are characterized by a grey head, a bright yellow patch on the hindneck, a pinkish-orange breast, and a purplish-maroon mantle. The rest of the body is largely green, with yellow undertail coverts and dark primary flight feathers. Females are predominantly dull green, with a greyish wash on the head and yellow undertail coverts. Both sexes have a greyish-green tail with a broad dark subterminal band.

2. 2

   Beak shape

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

   Relatively short and stout, pale greenish-blue at the base, fading to yellowish or whitish at the tip.

3. 3

   Eye color

   Iris color and any distinctive eye markings.

   Inner ring blue, outer ring red or orange-red.

4. 4

   Leg color

   Leg and foot color.

   Reddish-pink to purplish-red.

5. 5

   Distinguishing features

   Standout features that separate this species.

   The male's vibrant yellow neck patch and pinkish-orange breast are unmistakable. Females are distinguished from other green pigeons by their overall dull green plumage and yellow undertail coverts.

6. 6

   Juvenile appearance

   How young birds differ from adults.

   Juveniles resemble adult females but are generally duller, with less distinct grey on the head and often some brownish wash on the plumage. The yellow undertail coverts are present but may be less vibrant.

7. 7

   Seasonal changes

   Plumage variation between breeding and non-breeding seasons.

   No significant seasonal plumage changes; breeding and non-breeding plumages are similar.

8. 8

   Sexual dimorphism

   How males and females differ.

   Pronounced. Males are much more colorful with a yellow neck, pinkish-orange breast, and purplish-maroon mantle. Females are largely dull green.

Key field marks

• Male Plumage. Look for the distinctive combination of a grey head, bright yellow hindneck patch, pinkish-orange breast, and purplish-maroon mantle. The rest of the body is green.
• Female Plumage. Observe for an overall dull green body with a greyish wash on the head and bright yellow undertail coverts. The lack of vibrant colors on the neck and breast distinguishes her from the male.
• Vocalization. Listen for their characteristic soft cooing songs and 'whistle-coo' calls, which can help confirm identification, especially for females.
• Habitat. They are typically found in fruiting trees in forests, forest edges, and cultivated areas. Their arboreal nature means they are often seen high in the canopy.
• Behavior. Watch for their feeding behavior, often hanging upside down to reach fruits. They are generally less shy than some other pigeon species.

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