Ruddy Shelduck vs Cotton Pygmy-Goose

In short

The Ruddy Shelduck and Cotton Pygmy-Goose are both waterfowl but differ significantly in size and habitat preference. The Ruddy Shelduck is larger and more terrestrial, while the Cotton Pygmy-Goose is smaller and prefers densely vegetated wetlands.

Identification tips

1. Size: Look for the larger size of the Ruddy Shelduck compared to the smaller Cotton Pygmy-Goose. 2. Plumage: Note the orange-brown body and pale head of the Ruddy Shelduck versus the greenish-black and white pattern of the Cotton Pygmy-Goose. 3. Habitat: Observe the habitat; Ruddy Shelducks are more terrestrial, while Cotton Pygmy-Geese are found in densely vegetated wetlands. 4. Behavior: Ruddy Shelducks are often seen on land, whereas Cotton Pygmy-Geese are more aquatic.

Size

The Ruddy Shelduck is considerably larger, resembling a small goose, whereas the Cotton Pygmy-Goose is much smaller, akin to a small duck.

Plumage

The Ruddy Shelduck has a striking orange-brown body with a pale head and contrasting black and white wings. In contrast, the Cotton Pygmy-Goose has a more subdued color palette with greenish-black and white plumage, and males exhibit a glossy green head.

Behaviour

Ruddy Shelducks are often seen walking on land and are less dependent on water bodies, while Cotton Pygmy-Geese are more aquatic, often seen swimming and diving in densely vegetated wetlands.

Habitat

Ruddy Shelducks inhabit a wide range of habitats, from coastal lowlands to high plateaus, including manmade wetlands. Cotton Pygmy-Geese prefer wetlands with abundant floating vegetation and are more restricted to such environments.

Voice

There is limited information on vocalizations, but the Ruddy Shelduck is known for its loud, honking calls, while the Cotton Pygmy-Goose's vocalizations are less documented.