Gallinule and Swamphen

Gallinule noun - Any of various small aquatic birds of the genus Gallinula distinguished from rails by a frontal shield and a resemblance to domestic hens.

Swamphen is a synonym for gallinule. In some cases you can use "Swamphen" instead a noun "Gallinule".

Swamphen noun - Any of various small aquatic birds of the genus Gallinula distinguished from rails by a frontal shield and a resemblance to domestic hens.

Gallinule is a synonym for swamphen. You can use "Gallinule" instead a noun "Swamphen".