Question

Owl is
A) Diurnal bird
B) Vespertine bird
C) Crepuscular bird
D) Nocturnal bird

Answer 1

Hint: Owl is a bird which belongs to order Strigiformes. They have binocular vision and a binaural hearing system.

Complete Answer:
- An owl is a solitary living animal belonging to kingdom Animalia and class Aves. Owls show sexual dimorphism. They have a large head. They have sharp talons and feathers are adapted for silent flight. The beak is hawk-like.
- The owl can rotate their head and neck as much as $270^\circ$. The presence of 14 vertebrae makes their neck flexible. Owls have binocular vision.

1) Most nocturnal birds have eyes present sidewise but they have large forward facing eyes. This kind of eye gives a greater sense of perception for low light hunting. Thus Owl is a nocturnal bird of prey. They mostly hunt small mammals, insects and other birds.
2) Diurnal birds- These are the birds which are active in the day.
Eg- parrot, pigeon.
3) Some birds are active only during the twilight periods like
Vespertine birds- These are the birds that hunt in the evening that is only after sunset.
Eg- bats.
4) Crepuscular birds- These birds are active only before the sunrise.
Eg- Galapagos Hawk.

Thus the correct answer is (D) Owl is a nocturnal bird.

Note: The forward facing eyes and binocular vision makes owl a nocturnal bird. They are far-sighted. They sense their prey by using their hair like feathers on the feet and beak called the filoplumes.