North Island Brown Kiwi Bird Details
Apteryx mantelli
North Island Brown Kiwi
Uttar Dweep Ki Bhuri Kiwi
Abraham Dee Bartlett, 1852
Apterygiformes (KIWIS)
Apterygidae
Apteryx
Naturally in New Zealand.
Appearance :
The North Island Brown Kiwi has a brown plumage with streaks of lighter coloration. It has a long, slender bill with nostrils near the tip, no tail, and relatively short legs with strong claws.
Behaviour :
Nocturnal and shy, the kiwi is known for its distinctive probing bill used to search for insects and worms in the soil.
Habitat :
Dense, subtropical and temperate forests, often near water sources.
Diet :
Primarily carnivorous, feeding on insects, worms, and occasionally berries and seeds.
Conservation Status :
Endangered
Distribution :
Restricted to the North Island of New Zealand.
Population Size :
Around 25,000 individuals (as of recent estimates).
Life Span :
Live up to 30 years in the wild.
Body And Tarsus:
Compact, robust body with dense, brown plumage.
Head And Bill :
Small head with a long, slender bill used for probing soil.
Length :
Approximately 45-55 cm (17-22 inches).
Neck :
Short and stout.
Size :
Relatively small, resembling a chicken in size.
Tail Details :
Absent or vestigial (very short).
Weight :
1.3 to 3.3 kg (2.9 to 7.3 lbs).
Wing :
Wings are vestigial and non-functional for flight.
Wing Span :
Wings are rudimentary.
Facial Feature :
Prominent long bill with nostrils near the tip; small eyes.
Nest Details :
- A burrow or dug-out nest in the ground, often lined with leaves or other vegetation.
- Nest made up of: Usually lined with grass, leaves, and feathers.
Breeding Season :
Mainly from June to March, with peak breeding typically occurring from August to December.
Nesting Season :
During the spring and summer months.
Egg Color :
Creamy white.
Egg Length :
Approximately 12-15 cm (4.7-5.9 inches).
Egg Width and Weight :
Around 8-10 cm (3.1-3.9 inches).
Clutch Size :
1-2 eggs per clutch.
No. of Broods :
one brood per breeding season.
Incubation Period :
About 75-80 days.
Nestling Period :
About 5-6 months
Vocalization :
iwis are known for their loud, piercing calls that can carry long distances through the forest.
Sex Demorphism :
Females are slightly larger on average.
Migration Details :
Non-migratory; endemic to New Zealand.
