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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 ...
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. Matutinal, a classification of organisms that are only or primarily active in the pre-dawn hours or early night.
The Common nighthawk's trait of being a ground-nesting bird makes it particularly susceptible to predators, some of which include domestic cats, ravens, snakes, dogs, coyotes, falcons and owls. Lack of flat roofs, pesticides, [ 4 ] increased predation and loss of habitat [ 13 ] are noted factors of their decline.
Whatever your views on outdoor cats, it’s unavoidable that indoor cats are safer to birds – a study from 2013 found that domestic cats kill billions of birds and mammals each year.
There are many birds that are active nocturnally. Some, like owls and nighthawks, are predominantly nocturnal whereas others do specific tasks, like migrating, nocturnally. North Island brown kiwi, Apteryx mantelli [1] Black-crowned night heron, Nycticorax nycticorax [1] Short-eared owl, Asio flammeus [1] Long-eared owl, Asio otus [1]
Bird flu is back in the news once again for a distressing reason that has pet owners across the US on high alert. A virulent strain of the highly-pathogenic H5N1 avian flu has infected hundreds of ...
The caracal and the serval, both medium-sized cats, are known for their leaping ability which they use to catch flying birds, sometimes two at a time. Domestic cats may at times become specialists as bird-killers if other prey is unavailable. Some carnivora, including the red fox and martens, are known for engaging in surplus killing of birds.
Bird flu has been on the rise in Washington state and one sanctuary was hit hard: 20 big cats – more than half of the facility’s population – died over the course of weeks.