Little Tern vs Common Tern

In short

The Little Tern and Common Tern can be distinguished by size and structural differences, with the Little Tern being notably smaller and more delicate. Key field marks include bill color and wing patterns. Vocalizations differ, but both species share similar habitats.

Identification tips

1. Size and Structure: Look for the smaller, more delicate Little Tern. 2. Bill Color: Yellow with black tip for Little Tern; orange-red with black tip for Common Tern. 3. Forehead and Cap: White forehead on Little Tern during breeding; full black cap on Common Tern. 4. Wing Pattern: White leading edge more pronounced on Little Tern. 5. Vocalization: Listen for the high-pitched 'kik' of the Little Tern compared to the Common Tern's 'kee-arr'.

Size

The Little Tern is significantly smaller and more delicate than the Common Tern.

Plumage

The Little Tern has a yellow bill with a black tip, while the Common Tern has an orange-red bill with a black tip. The Little Tern shows a white forehead in breeding plumage, contrasting with the Common Tern's black cap extending to the bill. Wing patterns differ, with the Little Tern having a more pronounced white leading edge.

Behaviour

Both species exhibit similar foraging behavior, diving for fish, but the Little Tern often hovers more before diving.

Habitat

Both species are found in coastal and inland water habitats, but the Little Tern often prefers smaller, more sheltered waters.

Voice

The Little Tern's call is a high-pitched, sharp 'kik', while the Common Tern's call is a more strident 'kee-arr'.