Mediterranean Gull vs Caspian Gull

In short

The Mediterranean Gull and Caspian Gull can be distinguished by their size and bill structure. The Mediterranean Gull is smaller with a shorter, thicker bill, while the Caspian Gull is larger with a longer, more slender bill. In flight, the Mediterranean Gull shows a distinctive white wingtip, unlike the Caspian Gull.

Identification tips

1. Bill Structure: Mediterranean Gull has a shorter, thicker bill; Caspian Gull has a longer, more slender bill. 2. Wingtip Color: Look for the white wingtips in Mediterranean Gulls during flight. 3. Head Pattern: In breeding plumage, Mediterranean Gulls have a solid black head, while Caspian Gulls have streaked heads. 4. Size: Mediterranean Gulls are noticeably smaller. 5. Vocalization: Listen for the more melodious call of the Mediterranean Gull compared to the harsh call of the Caspian Gull.

Size

The Mediterranean Gull is smaller than the Caspian Gull.

Plumage

Mediterranean Gulls have a clean white underwing and a distinctive white wingtip in adults, while Caspian Gulls have more extensive black on the wingtips. Mediterranean Gulls also have a solid black head in breeding plumage, compared to the streaked head of the Caspian Gull.

Behaviour

Both species exhibit similar gull-like behaviors, but the Mediterranean Gull is more often seen in coastal areas, while the Caspian Gull is more adaptable to inland habitats.

Habitat

Mediterranean Gulls are typically found in coastal regions, whereas Caspian Gulls are more likely to be found in both coastal and inland areas, often near large bodies of water.

Voice

Mediterranean Gulls have a more melodious call, while Caspian Gulls have a harsher, laughing call.