Chestnut-headed Crake vs Cliff Chirping Frog

Anurolimnas castaneiceps compared with Eleutherodactylus marnockii

Taxonomic Classification

Rank	Chestnut-headed Crake	Cliff Chirping Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Gruiformes (Gruiformes)	Anura (Frogs & Toads)
Family	Rallidae	Eleutherodactylidae
Genus	Anurolimnas	Eleutherodactylus
Species	Anurolimnas castaneiceps	Eleutherodactylus marnockii

Evolutionary Relationship

Chestnut-headed Crake and Cliff Chirping Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Chestnut-headed Crake

LC — Least Concern

Cliff Chirping Frog

LC — Least Concern

Physical Characteristics

Attribute	Chestnut-headed Crake	Cliff Chirping Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut-headed Crake

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, and Norway.

Cliff Chirping Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico.

Chestnut-headed Crake

The Chestnut-headed Crake (Anurolimnas castaneiceps) is a species in the genus Anurolimnas. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Cliff Chirping Frog

The Cliff Chirping Frog, Syrrhophus marnockii (also known as Eleutherodactylus marnockii), is a small terrestrial frog in the family Eleutherodactylidae native to the Edwards Plateau and adjacent areas of central Texas in the United States and northern Mexico. This tiny frog, typically only 2–3 cm in length, is adapted to rocky limestone terrain, hiding in crevices, under rocks, and in the thin soil pockets on cliff faces, rocky outcrops, and canyon walls. The species is named for its high-pitched, insect-like chirping calls produced by males, particularly on humid nights following rainfall. Unlike many frogs, the Cliff Chirping Frog undergoes direct development: eggs are laid in moist rock crevices and develop directly into miniature froglets without a free-living aquatic larval stage, eliminating dependence on standing water for reproduction. Diet consists of small arthropods, insects, and other invertebrates encountered in rocky microhabitats. The species is cryptic and rarely seen but can be abundant in suitable habitat on the Edwards Plateau, an area of karst limestone geography. It is currently assessed as Least Concern by IUCN, with populations considered stable across its rocky limestone range.