Moqueur chat vs Moqueur polyglotte

The Grey Catbird and Northern Mockingbird can be distinguished by their size and plumage. The Northern Mockingbird is larger and has distinct white wing patches visible in flight, while the Grey Catbird is smaller with a uniform grey body and a black cap.

1. Size: Northern Mockingbird is larger. 2. Wing Patches: Look for white wing patches on the Northern Mockingbird in flight. 3. Cap: Grey Catbird has a distinctive black cap.

The Northern Mockingbird is noticeably larger than the Grey Catbird.

The Grey Catbird is uniformly grey with a black cap, whereas the Northern Mockingbird has grey upperparts and white underparts with prominent white wing patches and outer tail feathers.