Gallirallus calayanensis Allen, D., Oliveros, Española, Broad & Gonzalez, 2004 The Calayan rail (Aptenorallus calayanensis) is a flightless bird of the rail, moorhen, and coot family (Rallidae) that inhabits Calayan Island in the Philippines.

Though well known to natives of the island as the "piding", it was first observed by ornithologist Carmela Española in May 2004 and the discovery was officially announced on August 16, 2004.

The bill and legs are bright orange-red, unique among similar-sized dark-colored ground-dwelling birds on Calayan.

The formal description as a species new to science appeared in the journal Forktail (Allen et al. 2004).

[4] Stomach contents of a specimen contained various insects including snails, beetles and millipedes.

Lays on the ground at the base of a tree loosely made of dried leaves and stems.

It is also threatened by introduced species such as cats, dogs and rats which could prey on these birds and their nests.

Develop capacity of local officials and community leaders in managing the recently established wildlife sanctuary and in enforcing its rules and regulations.