A common moorhen & chicks in Northumberland Park, North Shields, England

From Wikipedia

The common moorhen (Gallinula chloropus), also known as the waterhen, is a bird species in the rail family (Rallidae). It is distributed across many parts of the Old World, across Africa, Europe, and Asia. It lives around well-vegetated marshes, ponds, canals and other wetlands. The species is not found in the polar regions or many tropical rainforests; generally it is one of the most common Old World rail species, together with the Eurasian coot in some regions.

The common moorhen was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae. He placed it in the genus Fulica and coined the binomial name Fulica chloropus. The common moorhen is now one of five extant species placed in the genus Gallinula that was introduced in 1760 by the French zoologist Mathurin Jacques Brisson. The genus name is from Latin gallinula meaning “little hen” or “little chicken”. The specific epithet chloropus combines the Ancient Greek khlōros χλωρός meaning “green” and pous (πούς) meaning “foot”.

The closely related common gallinule G. galeata of the New World, and the tristan moorhen G. nesiotis and gough moorhen G. comeri of the Tristan da Cunha archipelago, formerly often regarded as conspecific, are now treated as a separate species by all the ornithological authorities,[6] following the discovery of significant genetic differences in addition to differences in the structure of the red bill shield and vocal differences. The final species in the genus, the dusky moorhen G. tenebrosa of Australasia, has also been considered conspecific by some authors in the past.

The name mor-hen has been recorded in English since the 13th century. The word moor here is in its old sense meaning marsh; the species is not usually found in what is now called moorland. Another old name, waterhen, is more descriptive of the bird’s habitat. A “watercock” is not a male “waterhen” but the rail species Gallicrex cinerea, not closely related to the common moorhen. “Water rail” usually refers to Rallus aquaticus, again not closely related.

Image details
Date: 6 May 2023
Camera body: Nikon D50
Lens: Tamron 70.0-300.0 mm f/4.0-5.6
Focal Length: 300mm
Aperture: ƒ/5.6
Shutter Speed: 1/500s
ISO: 400
Licence: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International