Buff-collared Nightjar vs Cliff Chirping Frog

Antrostomus ridgwayi compared with Eleutherodactylus marnockii

Taxonomic Classification

Rank	Buff-collared Nightjar	Cliff Chirping Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Caprimulgiformes (Caprimulgiformes)	Anura (Frogs & Toads)
Family	Caprimulgidae	Eleutherodactylidae
Genus	Antrostomus	Eleutherodactylus
Species	Antrostomus ridgwayi	Eleutherodactylus marnockii

Evolutionary Relationship

Buff-collared Nightjar and Cliff Chirping Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Buff-collared Nightjar

LC — Least Concern

Cliff Chirping Frog

LC — Least Concern

Physical Characteristics

Attribute	Buff-collared Nightjar	Cliff Chirping Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Buff-collared Nightjar

Habitat

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

Range

Found in Norway.

Cliff Chirping Frog

Habitat

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

Range

Found in Mexico.

Buff-collared Nightjar

The Buff-Collared Nightjar (Antrostomus ridgwayi) is a species in the genus Antrostomus. 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.