How do owls turn their heads so much?
Owls have 14 neck vertebrae humans have 7, which gives them great flexibility. Their blood vessels are designed to prevent cutting off blood flow to the brain when twisting, their large, forward-facing eyes are fixed in their sockets, so moving the head is necessary to look around.
Why Birds Call Loudly
- Territorial Calls
To warn other birds to stay away from their territory, Koel, Robin, and Peacock are loud territorial singers.
- Mating Calls
Males birds sing call loudly to attract mates, Nightingale and Indian Koel sing during the breeding season.
- Alarm Calls
Sharp, loud calls to warn others about predators common in mynas, sparrows, crows.
- Communication Within Flock
Birds use calls to stay in contact while flying, feeding. Parakeets and starlings make chattering group sounds.
- Begging Calls
Chicks call loudly to beg for food from parents.