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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Crested Shelduck (1 Viewer)

close to zero I think; there were some extensive leaflet surveys done in NE CHina back in the 1980s I think and there wasn't a response suggestive of its survival.

cheers, alan
 
Yes, surely it should now be categorised as CR(PE) at least, rather than CR.

For those not familiar with Birdlife jargon this means:-
CRITICALLY ENDANGERED (POSSIBLY EXTINCT) CR (PE) - This is not an official category of the IUCN Red List, but a tag applied by BirdLife (and under review by the IUCN Red List) to identify those Critically Endangered species (see definition below) 'that are likely to be extinct, but for which there is a small chance that they may still be extant, and hence they should not be listed as Extinct until local or unconfirmed reports have been discounted, and adequate surveys have failed to find any individuals' (see below for further details).

CRITICALLY ENDANGERED (CR) - A species is Critically Endangered when the best available evidence indicates that it meets any of the criteria A to E for Critically Endangered (see IUCN Red List Criteria) and it is therefore considered to be facing an extremely high risk of extinction in the wild.
 
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