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The future for
one of the most endangered endemic birds in Seychelles, the
Magpie-robin, is looking bright, say environmentalists.
According to
recent reports by the Seychelles Magpie-robin Recovery Team (SMART), the
birds' populations on Cousin and Cousine are at "carrying" or full
capacity, characterised by zero or little population growth and the
occasional emigration.
Fifteen robins
were also moved from Frégate to Aride Island in early 2002 to seed a new
population there. After a shaky beginning, the Aride population is now
on the increase and Frégate is probably already full again, the reports
say.
Emigration from
one of the Magpie-robin's four island homes has also been a positive
sign for the health of the species' population, according to the
reports.
According to
Nature Seychelles science coordinator Rachel Bristol, a young
Magpie-robin, identified as coming from Cousine by its unique colour
ring combination, was spotted at Anse Boudin on Praslin by children last
weekend.
Dr Mike Hill,
science consultant for Nature Seychelles, confirmed that the robin was
still at Anse Boudin later in the week.
"It is the fifth
known instance of robins emigrating from Cousine to either Praslin or
Cousin. All have been young 1-year-old females, presumably looking for
a territory and mate of their own instead of having to share," says Ms
Bristol.
"What the robins
need to further safeguard their future are more islands free of rats and
cats," she explains.
Ms Bristol
however notes that finding predator-free islands in the inner islands of
Seychelles that have plenty of plateau forest -- the ideal magpie-robin
habitat -- is not easy, adding that only the islands of Denis and North
may be considered suitable in the near future.
"Denis Island
has eradicated cats and rats in 2001 and 2002 and an initial assessment
indicates that the habitat is suitable for robins," she explains.
North Island is
currently eradicating its predators and plans to undertake major habitat
restoration involving the removal of alien plants and replacing them
with native vegetation, she adds.
The objective of
the Magpie-robin recovery programme is to restore populations to seven
islands with a minimum of 200 birds by 2006. |