Identifying Cormorants in India: Little, Indian & Great Cormorant Identification Guide could be helpful for new birdwatchers exploring wetlands.
Cormorants are aquatic birds often seen perched with wings spread wide after diving. In India, three species are commonly observed: the Little Cormorant (Microcarbo niger), the Indian Cormorant (or Indian shag) (Phalacrocorax fuscicollis), and the Great Cormorant (Phalacrocorax carbo). While they share similar habits, careful observation reveals clear differences, and you can confidently identify them in the field.
Key Identification Features
| Species | Size | Bill & Head | Eye Color | Plumage | Typical Habitat |
|---|---|---|---|---|---|
| Little Cormorant | Small (50 cm) | Short, stout bill; rounded head | Dark brown | Glossy black adults; juveniles brownish | Ponds, lakes, rivers, even urban wetlands |
| Indian Cormorant (or Indian shag) | Medium (60–65 cm) | Slender, long bill with hooked tip; sloping forehead | Striking blue-green eyes | Black adults. white tuft near the ear during breeding; juveniles brown with pale underparts | Inland waters, communal fishing groups |
| Great Cormorant | Large (80–100 cm) | Thick, heavy bill; robust head | Greenish eyes | Glossy black with white throat patch (breeding plumage shows white on head) | Reservoirs, dams, coastal estuaries |
Field Notes for Birdwatchers
- Behavior: All three species dive underwater to catch fish, often surfacing with a wriggling catch. They are frequently seen perched upright, wings outstretched to dry.
- Group Dynamics: Indian Cormorants are notably gregarious, often fishing in coordinated groups. Little Cormorants are more solitary or in small flocks, while Great Cormorants dominate larger water bodies.
- Breeding Plumage: Look for subtle seasonal changes—Indian Cormorants develop a white tuft near the ear during breeding. Great Cormorants show striking white patches on the head and thighs.
Distribution in India
- Little Cormorant: Widespread across India, from village ponds to city lakes.
- Indian Cormorant: Concentrated along inland waters of the subcontinent, extending west to Sind and east to Southeast Asia.
- Great Cormorant: Found in larger reservoirs, coastal areas, and estuaries; less common inland.
Tips for Identification in the Field
- Start with size: Spotting a large bird? Likely the Great Cormorant.
- Check the eyes: Blue-green eyes are a giveaway for the Indian Cormorant.
- Look at the bill: Short and stubby indicates Little Cormorant; long and slender points to Indian. Heavy bill = Great Cormorant.
- Shape of head: Sloping forehead= Indian cormorant, rounded head = Little cormorant.
Conclusion
By focusing on size, shape and size of bill and head, and eye color, birdwatchers can easily identify cormorants in India. Next time you’re at a lake or dam, pause to observe these skilled divers—you’ll see how each species brings its own character to India’s wetlands.