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Crepuscular, a classification of animals that are active primarily during twilight, making them similar to nocturnal animals. Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night. Cathemeral, a classification of organisms with sporadic and random intervals of activity during the day or night.
C. a. aequabilis Sri Lanka. Jerdon's nightjar (Caprimulgus atripennis) is a medium-sized nightjar species native to southern India and Sri Lanka.Formerly considered as a subspecies of the long-tailed nightjar, it is best recognized by its distinctive call which sounds like a wooden plank being beaten periodically with each note ending in a quaver. [2]
Hudhud (English: Hoopoe, Arabic: الهدهد, Turkish: Ibibik, Persian: هدهد, Urdu: ہوپو / ہد ہد) was, according to the Quran, the messenger and envoy of the prophet Sulayman. It refers to the sagacious birds in Islam, also referred to in The Conference of the Birds, a Persian poem by Attar of Nishapur as the "king of birds". [1]
The eyes are large, even larger than those of nightjars. As in many species of nocturnal birds, they reflect the light of flashlights. [14] Their eyes, which could be conspicuous to potential predators during the day, have unusual slits in the lids, [15] which allow potoos to sense movement even when their eyes are closed.
Jerdon's courser (Rhinoptilus bitorquatus) is a nocturnal bird belonging to the pratincole and courser family Glareolidae endemic to India. The bird was discovered by the surgeon-naturalist Thomas C. Jerdon in 1848 but not seen again until its rediscovery in 1986. [3]
The call is distinctive and has been likened to a stone skipped on a frozen lake (due to which it was also called the "ice-bird" in colonial India [3] [4]) or a ping-pong ball bouncing rapidly and coming to rest. [2] It flies after sundown with an easy, silent moth-like flight. During the day, Indian nightjar lies still on the ground, concealed ...
The Egyptian nightjar (Caprimulgus aegyptius) is a medium-small nightjar which occurs in south west Asia and north Africa and winters in tropical Africa. This is a fairly common species with a wide distribution which faces no obvious threats apart from habitat destruction, so the International Union for Conservation of Nature has rated its conservation status as being of "least concern".
The common name "nightjar", first recorded in 1630, refers to the nocturnal habits of the bird, the second part of the name deriving from the distinctive churring song. [1] Caprimulgus nightjars are found around Afro-Eurasia and Australasia, and like other nightjars they usually nest on the ground. They are mostly active in the late evening and ...