Want China Times, CNA and Staff Reporter 2015-08-05
Large pigeons at the Taipei Zoo that are the closest living relative to the extinct dodo were confirmed recently to have successfully reproduced for the first time in four years, the zoo reported on Monday.
Nicobar pigeon parents tend to their newborn. (Photo courtesy of Taipei Zoo) |
Large pigeons at the Taipei Zoo that are the closest living relative to the extinct dodo were confirmed recently to have successfully reproduced for the first time in four years, the zoo reported on Monday.
The zoo
said the breeding patterns of the zoo's Nicobar pigeons were disrupted when
they moved to a smaller temporary habitat in 2012 while the main aviary was
being renovated. That remained the case even after the pigeons moved back to
the new aviary, which was opened in 2013.
It was only
in March this year that the zoo began observing the pigeons displaying signs of
courtship and nest building, and it was not until July 30 that the zoo had
visual confirmation that the eggs laid down this year had hatched.
At present,
there are three such nests atop a tree above a pond, with female and male
pigeons taking turns to hatch eggs and care for the young. The pigeons are on
watch for anything that approaches the nest, the zoo said.
Nicobar
pigeons are monogamous. During a courtship that can last a number of days when
the breeding season arrives, the male courts the female by frequent bowing and
then starts collecting twigs and other materials to build nests.
The pigeon,
originally found in Southeast Asia, has bright green feathers and the upper
part of the dark bill forms a small blackish knob. Measuring 40 centimeters in
length, it is the closest living relative of the dodo, which became extinct in
the 17th century. The conservation status of the Nicobar pigeon is listed as
near threatened because of a shrinking habitat, human hunting and problems
finding food.
The female
can lay one or two oval eggs in the nest, and they take about 30 days to hatch.
The baby starts to grow feathers after 10 days and has full metallic green
feathers in 70-80 days, though it may remain in the nest for a certain period
of time.
No comments:
Post a Comment