How to identify the Woolly-necked Stork

To correctly identify the Woolly-necked Stork (Ciconia episcopus), 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

85-92 cm

Wingspan

150-170 cm

Weight

1.5-2.5 kg

Physical features to check

1. 1

   Plumage

   Overall feather coloration and pattern.

   Adults have glossy black plumage on the body, wings, and tail, often with a green or purple iridescent sheen. The head is black, and the neck and upper breast are covered in distinctive fluffy white feathers, giving a 'woolly' appearance. The lower belly and undertail coverts are white.

2. 2

   Beak shape

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

   Long, stout, and pointed, typically dark grey to black, sometimes with a reddish tinge at the base during breeding season.

3. 3

   Eye color

   Iris color and any distinctive eye markings.

   Dark brown with a red orbital ring.

4. 4

   Leg color

   Leg and foot color.

   Dull red to dark grey, becoming brighter red during the breeding season.

5. 5

   Distinguishing features

   Standout features that separate this species.

   The most distinctive feature is the fluffy white 'woolly' neck. The black cap and glossy black body contrasting with the white lower belly and undertail coverts are also key. In flight, the black underwing coverts contrast with the white belly.

6. 6

   Juvenile appearance

   How young birds differ from adults.

   Juveniles resemble adults but have duller, browner plumage, less glossy black, and the 'woolly' neck feathers are shorter and less prominent, often appearing streaky or greyish. The bill and legs are duller.

7. 7

   Seasonal changes

   Plumage variation between breeding and non-breeding seasons.

   No significant seasonal plumage changes. Leg and bill coloration may intensify during the breeding season.

8. 8

   Sexual dimorphism

   How males and females differ.

   Males and females are generally monomorphic in plumage and size, though males may be slightly larger on average.

Key field marks

• Plumage Pattern. Look for the glossy black body contrasting sharply with the fluffy white neck and lower belly/undertail coverts. The black head is also a key feature.
• Neck Feathers. The most diagnostic feature is the thick, fluffy, white 'woolly' feathers on the neck and upper breast.
• Bill and Leg Color. Note the dark grey to black bill and dull red to dark grey legs (brighter red in breeding season).
• Flight Profile. In flight, observe the outstretched neck and legs, and the contrast between the black underwing coverts and white belly.
• Behavior. Often seen foraging slowly in shallow water or open fields, sometimes perching on tall trees.

Explore the Woolly-necked Stork