Iqbal dan teman-teman semua,
Lokasi untuk Sunda Coucal memang belakangan diketahui lebih banyak
dari sebelumnya. Misal, dari beberapa kegiatan lapangan yang
dilakukan teman-teman di Jawa (seperti Expedisi Trulek jawa kemarin
itu), ada beberapa lokasi baru untuk burung ini. Pada kasus
perjumpaan di Maleman dan di dekat pondoknya "Rosida" (mungkin Mas
Londo bisa mengingatkan saya nama tempatnya), adalah benar jika Sunda
Coucal boleh dikatakan toleran dengan keadaan habitat. Jika kita
hanya melihat keadaan begini, ada alasan memang untuk menurunkan
status keterancamannya menjadi Near Threatened.
Akan tetapi, burung ini juga mulai sering ditemukan di pasar burung,
dan ini tidak termasuk dalam hitung-hitungan sebelumnya. Makin
mudahnya akses menuju tempat hidup Sunda Coucal menurut saya adalah
penyebab makin banyaknya burung ini muncul di pasar burung, jadi
bukan karena jumlahnya "masih banyak".
Bgaimana menurut teman-teman lain?
On Thursday ,12 Apr 2007, at 5:15 PM, muhammad iqbal muhammad iqbal
wrote:
Sunda Coucal (Centropus nigrorufus): does it still
warrant Vulnerable status?
Sunda Coucal Centropus nigrorufus is currently
classified as Vulnerable (A2c,d; A3c,d; C2ai) because
it has a small population of 2,500-9,999 mature
individuals, with all subpopulations numbering <1,000
mature individuals, and which is inferred to be
declining at a rate exceeding 30% over ten years owing
to habitat destruction and trapping. However, Gaasas
Chunkino (in litt. 2006) has suggested that habitat
loss may not represent such a significant threat as
has been suspected, arguing that the species can adapt
to some degree to secondary growth and alternative
habitats. Furthermore he suggests that large numbers
are apparently found in the bird trade on Java,
implying that the species is much more common than
previously thought. If valid, the species may not meet
the thresholds of the Red List criteria for listing as
Vulnerable owing to small population size and rates of
decline. Further information about its tolerance of
secondary habitats, the likely impact of habitat loss,
number of birds in trade, and population and trend
estimates would be welcomed.
Note: forwarded message attached.
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