Birds are free to move up in the sky . they are lovely creature of god . Birds can seem to be everywhere during the day, flitting among trees, the ground, visiting feeders and perching on every where .Like other animals that are active during the day, the principle nighttime activity of birds is sleeping. Birds choose how they sleep very carefully to ensure they can survive through the night, and they have certain tricks that help give them warning about predators or to protect them from the elements. Birds builds nest and stays close to their eggs .till hatched mall birds sleep perched high in trees, typically close to the trunk of the tree. The trunk holds heat from the daytime to provide better shelter, and the birds will be alerted to any vibrations or noises predators make if they climb the tree looking for prey.
While sleeping is the most popular nighttime activity for most birds, it is not the only thing birds will do at night. Depending on the time of year, birds may also work to attract mates or migrate to a new part of their range at night. Not all birds sleep on branches however. Waterfowl and shorebirds sleep near the water. Ducks often stand at the water’s edge or on a partially submerged stick or rock and tuck one foot into their body, much like birds do on perches. Some can even sleep with one eye open, as half of their brain is alert while the other is asleep. This is called unihemispheric slow-wave sleep .we see the different birds all over the world big ,small they all have various habits of living . If you’ve ever seen an owl, then you may know that some birds prefer to fly primarily at night. Nocturnal birds, like owls and nighthawks, wake up as the sun sets and hunt at night. During the daytime, they find a safe place and close their eyes to block out the light. By contrast, most birds are diurnal, meaning they’re awake during the day and asleep at night. These species will find something to perch on, like a branch or a windowsill, for the night. Then, the bird will fluff out its down feathers, turn its head around, tuck its beak into its back feathers, and pull one leg up to its belly before falling asleep. Sounds uncomfortable, right? Eventually birds sleep in ways they are , some sleep standing some , sleep in trees some under roofs of houses etc . some like to sleep in folks , in other way they all need sleep in night .
When it is raining they too take shelter . But many birds have another trick — they can switch off half their brain. We humans have two separate brains or hemispheres in our skull joined only by a tiny bundle of nerves called the corpus callosum. Each of our eyes sends information to each brain. But birds do it differently. The information from one eye goes only the brain on the opposite side. So the left eye sends information only to the right brain and vice versa.
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