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In birds, sleep consists of "periods of eye closure interrupted by short periods of eye-opening." [This quote needs a citation] During the short periods of eye-opening, electroencephalographic (EEG) studies indicate that the birds are still sleeping; the voltage level in the brain is identical. [1] Birds restore their arousal thresholds during ...
They are also featured prominently in the lyrics of Joanna Newsom's bird-heavy fourth album Divers; the opening track "Anecdotes" name-checks four different varieties (Rufous, Whip-poor-will, Star-Spotted and Sickle-Winged) and the final track ends with a repeated radio transmission to the fictional soldier Rufous Nightjar.
If the bird's left side is facing outward, the left hemisphere will be in slow-wave sleep; if the bird's right side is facing outward, the right hemisphere will be in slow-wave sleep. This is because the eyes are contralateral to the left and right hemispheres of the cerebral cortex. The open eye of the bird is always directed towards the ...
A Minecraft mod is a mod that changes aspects of the sandbox game Minecraft. Minecraft mods can add additional content to the game, make tweaks to specific features, and optimize performance. Thousands of mods for the game have been created, with some mods even generating an income for their authors.
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.
Sleep can follow a physiological or behavioral definition. In the physiological sense, sleep is a state characterized by reversible unconsciousness, special brainwave patterns, sporadic eye movement, loss of muscle tone (possibly with some exceptions; see below regarding the sleep of birds and of aquatic mammals), and a compensatory increase following deprivation of the state, this last known ...
The common nighthawk or bullbat (Chordeiles minor) is a medium-sized [3] [4] crepuscular or nocturnal bird [3] [5] of the Americas within the nightjar (Caprimulgidae) family, whose presence and identity are best revealed by its vocalization.
The origins of the Nachtkrapp legends are still unknown, but a connection possibly exists to rook infestations in Central Europe. Already feared due to their black feathers and scavenging diet, the mass gatherings quickly became an existential threat to farmers and gave rooks and crows their place in folklore as all-devouring monsters.