THE MIGRATION OF BRIDLED TERNS Sterna anaethetus BREEDING IN WESTERN AUSTRALIA
| Posted: |
10/08/2021 |
| Author(s): |
J. N. Dunlop, R. E. Johnstone |
Bridled Terns breeding on the Western Australian coastline are generally absent from their nesting
colonies and adjacent seas between early May and mid-September. The recovery of some marked
terns banded at colonies in south-western Australia has now identified a definite 'wintering' area. This
is located in the north-western sector of the Celebes Sea, between about 4 and 7 degrees north
latitude.
Mixed flocks of adult and fledgling Bridled Terns observed moving through Lombok Strait, Lintah
Strait (between Flores and Komodo Is), and via the Sabu and Banda seas in the Lesser Sundas during
April-May are considered to have been Western Australian birds on their post-breeding migration.
Flocks observed in Timor Sea in August, September and October are probably birds returning to their
Western Australian breeding grounds.
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