Great Crested Tern vs Chinese Crested Tern

In short

The Great Crested Tern and Chinese Crested Tern are similar in appearance but can be distinguished by bill color and distribution. The Great Crested Tern typically has a yellow bill, while the Chinese Crested Tern has a paler, more ivory-colored bill. Both species share similar habitats, often found in coastal regions.

Identification tips

1. Bill Color: Look for the bill color; Great Crested Tern has a yellow bill, while Chinese Crested Tern has an ivory or whitish-yellow bill. 2. Location: Consider the geographical location; Chinese Crested Tern is more restricted to East Asia. 3. Plumage: Both have similar plumage, so rely on bill color and location for identification.

Size

Both species are similar in size, with no significant differences that are easily observable in the field.

Plumage

Both terns have a black cap and white underparts. The Great Crested Tern has a yellow bill, whereas the Chinese Crested Tern's bill is paler, often described as ivory or whitish-yellow. This is the most reliable plumage difference.

Behaviour

Both species exhibit similar behaviors typical of terns, such as diving for fish and nesting in colonies. Behavioral differences are not prominent for field identification.

Habitat

Both species are found in coastal regions, often on sandy beaches and islands. The Chinese Crested Tern has a more restricted range, primarily found in parts of East Asia, while the Great Crested Tern has a broader distribution.

Voice

Vocalizations of both species are similar and not a reliable field mark for distinguishing them.