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Motacillidae

life science Maturity 11-13 Next article →

The Motacillidae family consists of small passerine birds. Passerines are a large group of birds often called perching birds. This specific family includes three main types: wagtails, longclaws, and pipits. These birds are easily recognized by their medium to long tails and slender bodies. They play an important role in many ecosystems around the world. Most members of this family are ground-feeding insectivores. This means they primarily eat insects and other small invertebrates to survive.

Black-headed wagtail (M. f. feldegg)
Black-headed wagtail (M. f. feldegg)

To find food, these birds search through various habitats. They are quite versatile and occupy almost every available environment. Some live near the shore, while others live in high mountains. Most species prefer slightly open country for foraging. Wagtails generally choose wetter habitats compared to the pipits. A few specialized species, like the forest wagtail, live in wooded areas. Other species, such as the grey wagtail, prefer forested mountain streams. Their diet is quite broad and depends on what is nearby. They eat insects, spiders, and worms. They also consume small aquatic molluscs and other arthropods.

Paddyfield Pipit in Bhopal
Paddyfield Pipit in Bhopal

The family is organized into several different genera. There are about 70 species divided among five main genera. The genus *Motacilla* contains the typical wagtails. The genus *Anthus* includes the typical pipits. The genus *Macronyx* contains the longclaws. There is also the genus *Dendronanthus*, which includes the forest wagtail. Finally, the genus *Tmetothylacus* contains the golden pipit. Some scientists also suggest a seventh genus called *Hemimacronyx*. This genus might include the yellow-breasted pipit and Sharpe's longclaw. These two species are very closely related to the longclaws.

Olive-backed Pipit (Anthus hodgsoni) in Kolkata W IMG 4336
Olive-backed Pipit (Anthus hodgsoni) in Kolkata W IMG 4336

Physical characteristics vary significantly between these groups. All Motacillids are slender birds with short necks. They possess long, pale legs and long toes. In some longclaws, the hind toe can reach 4 cm in length. There is no sexual dimorphism in size, meaning males and females look similar in scale. Longclaws are the most robust and largest members of the family. For example, Fülleborn's longclaw can weigh as much as 64 g. In contrast, pipits and wagtails are much lighter. They typically weigh between 15 g and 31 g. The yellowish pipit is likely the smallest species.

Yellow-throated Longclaw (Macronyx croceus)
Yellow-throated Longclaw (Macronyx croceus)

Plumage colors also differ across the family. Many pipits have dull brown feathers that look like larks. However, some species are much brighter, such as the golden pipit of north-east Africa. Male longclaws often have brightly colored undersides. Wagtails frequently show striking patterns of grey, black, white, and yellow. Most species, except for the forest wagtail, build their nests on the ground. In these nests, they lay up to six speckled eggs. This ground-nesting habit is a key part of their life cycle.

Forest wagtail
Forest wagtail

Our understanding of these birds has changed due to scientific research. In 2019, a molecular phylogenetic study was published. This study looked at the DNA of 56 out of the 68 recognized species. The researchers found that the species form six major clades, or groups. They discovered that the pipit genus *Anthus* was paraphyletic. This means some pipits are more closely related to longclaws than to other pipits. For instance, the striped pipit and African rock pipit belong within the longclaw genus, *Macronyx*. The meadow pipit, the type species for *Anthus*, belongs to Clade 2.

Paddyfield Pipit in Bhopal
Paddyfield Pipit in Bhopal

Motacillids have a very wide geographic distribution. The longclaws are entirely restricted to the Afrotropics. Wagtails are mostly found in Europe, Africa, and Asia. Interestingly, two wagtail species even migrate to breed in Alaska. Pipits have the most cosmopolitan distribution of all. This means they are found almost everywhere. They are mostly in the Old World, but they also live in the Americas. They can even be found on oceanic islands like New Zealand and the Falklands. This wide range shows how adaptable these small birds truly are.

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🖼️ Images & Media (5)
File:Black-headed wagtail (M. f. feldegg).jpg
Black-headed wagtail (M. f. feldegg).jpg
File:Olive-backed Pipit (Anthus hodgsoni) in Kolkata W IMG 4336.jpg
Olive-backed Pipit (Anthus hodgsoni) in...
File:Forest wagtail.jpg
Forest wagtail.jpg
File:Yellow-throated Longclaw (Macronyx croceus).jpg
Yellow-throated Longclaw (Macronyx croceus).jpg
File:Paddyfield Pipit in Bhopal.jpg
Paddyfield Pipit in Bhopal.jpg
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