Birds 

21. Which bird builds impressive mud nests on cliffs or man-made structures?

a) Swallow

b) Sparrow

c) Robin

d) Kingfisher

22. Which bird is known for its ability to mimic sounds, including car alarms and phone ringtones?

a) Starling

b) Sparrow

c) Vulture

d) Falcon

23. Which bird can hold its breath for up to 100 minutes while underwater diving?

a) Penguin

b) Cormorant

c) Osprey

d) Kiwi

24. Which bird has the largest brain-to-body ratio among all bird species?

a) Crow

b) Eagle

c) Ostrich

d) Duck

25. Which bird is known for its elaborate and colorful courtship display in the shape of a heart?

a) Dove

b) Puffin

c) Woodpecker

d) Kingfisher