How to identify the African Red-eyed Bulbul

To correctly identify the African Red-eyed Bulbul (Pycnonotus nigricans), 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

19-21 cm

Wingspan

28-32 cm

Weight

25-35 g

Physical features to check

1. 1

   Plumage

   Overall feather coloration and pattern.

   Adults have a dark sooty-brown head, contrasting with a plain greyish-brown back, wings, and tail. The underparts are paler, a dull greyish-white, often with a yellowish wash on the vent and undertail coverts. The most striking feature is the bright red eye-ring, which is prominent and diagnostic. The bill is black, and the legs are dark grey to black.

2. 2

   Beak shape

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

   Relatively short, slender, and slightly decurved, black in color.

3. 3

   Eye color

   Iris color and any distinctive eye markings.

   Dark brown, surrounded by a prominent bright red eye-ring.

4. 4

   Leg color

   Leg and foot color.

   Dark grey to black

5. 5

   Distinguishing features

   Standout features that separate this species.

   The bright red eye-ring is the most distinctive feature. The dark head contrasting with the paler body and yellowish vent also aids identification. It lacks the crest found in some other bulbul species.

6. 6

   Juvenile appearance

   How young birds differ from adults.

   Juveniles resemble adults but have a duller, orange-red eye-ring that is less vibrant than the adult's bright red. Their plumage may also appear slightly duller overall, and the head may be less intensely dark.

7. 7

   Seasonal changes

   Plumage variation between breeding and non-breeding seasons.

   No significant seasonal plumage changes are observed in this species.

8. 8

   Sexual dimorphism

   How males and females differ.

   Males and females are monomorphic in plumage and size, making them indistinguishable in the field based on visual cues alone.

Key field marks

• Eye-ring. Look for the bright, unmistakable red eye-ring. This is the most definitive field mark for adults.
• Head Color. Note the dark sooty-brown head, which contrasts with the slightly paler body plumage.
• Vent Color. Observe the yellowish wash on the undertail coverts and vent, which can be a subtle but helpful clue.
• Behavior. Watch for its active foraging in bushes and trees, often in pairs or small groups, and listen for its cheerful, liquid calls.

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