#rallidae | Explore Tumblr Posts and Blogs

herpsandbirds · 3 months

Text

Common or Eurasian Coot (Fulica atra), family Rallidae, order Gruiformes, found across much of Eurasia, northern Africa, and Oceania, Australia and New Zealand

The remarkable feet of coots are fissipalmate (lobed/partially webbed), which help them swim and walk across soft mud (without sinking).

Coots are not ducks, but are more closely related to rails and gallinules/swamphens (and more distantly, cranes).

photograph by Pat L. on flickr

#coot #waterfowl #fulica #rallidae #rail #gruiformes #bird #ornithology #animals #nature #europe #asia #australia #africa

5K notes · View notes

great-and-small · 3 months

Text

#memes #Rallidae #birds #Okinawa rail

2K notes · View notes

franklin-l-toote · 17 days

Text

Pūkeko - 2020

#pūkeko #nature photography #film photography #photography #canon ae1 #50mm #new zealand #100-300mm #gruiformes #rallidae #bird photography #birds #birdwatching

853 notes · View notes

uncharismatic-fauna · 4 months

Text

Access Denied: The Inaccessible Island Rail

The Inaccessible Island rail (Laterallus rogersi) is a rarely seen member of the rail family, Rallidae. Part of the reason for its obscurity is the place in which it resides: Inaccessible Island, part of the Tristan da Cunha archipelago in the southern Atlantic Ocean. These islands are extremely remote, and until 2019 it was unclear how L. rogersi even came to be there. We now know that the species colonized the island some 1.5 million years ago, originally coming in from South America and subsequently losing its ability to fly.

In addition to its unique evolutionary history, the Inaccessible Island rail's greatest claim is that it is the smallest flightless bird in the world. Individuals weigh between 35 to 49 g (1.2–1.7 oz) and can be 13 to 15.5 cm (5.1–6.1 in) long from beak to tail. Members of both sexes are dark brown with red eyes; some may have white striping along the underbelly or wings. Females tend to be slightly smaller and lighter in color than males.

The Inaccesible Island rail can be found on all habitats on the island in which it inhabits; these include low mountains and fern brush though the species is most abundant in the grasslands that grow close to the rocky shore. Within these habitats, L. rogersi is largely diurnal. They freely forage for invertebrates, including earthworms, beetles, and moths, as well as seeds and berries; as they have no natural predators they have few defenses against potential threats, although they can run extremely fast when alarmed.

Adults are highly territorial, and when two rivals of either sex encounter each other they will display by lowering their heads, circling each other, and calling loudly until one of them concedes. Males and females mate for life, and build nests in the tall grass. The breeding season is between October and January, in late summer, and females lay a clutch of 2 eggs. Both parents take turns incubating the eggs until they hatch. Chicks can be vulnerable to predation by the migratory brown skua, so parents guard the nest fiercely. The time it takes for chicks to fully mature is unknown, as is the average lifespan in the wild.

Conservation status: The Inaccessible Island rail is considered Vulnerable by the IUCN. The island's population is believed to stand at about 5,600 adult birds. While the island's ecology is currently stable, researchers believe the species would be seriously imperaled if invasive species such as house mice, feral cats and brown rats were introduced. Access to the island is currently restricted, and the island has been declared a nature reserve by the Tristan da Cunha Island Council.

If you like what I do, consider leaving a tip or buying me a kofi!

Photos

Peter G. Ryan

#inaccessible island rail #Gruiformes #Rallidae #rails #birds #islands #island birds #grasslands #grassland birds #Atlantic ocean #animal facts #biology #zoology

939 notes · View notes

alonglistofbirds · 9 months

Text