Saunders’ Tern
SAUNDERS’ TERN
1 Saunders’ Tern facts according to Birdlife International
http://datazone.birdlife.org/species/factsheet/saunderss-tern-sternula-saundersi/text
http://datazone.birdlife.org/species/factsheet/saunderss-tern-sternula-saundersi?gclid=EAIaIQobChMIv-np29SU5wIVBp53Ch1fwgNmEAMYASAAEgI50fD_BwE
2. Saunders’ Tern Sterna saundersi Birds of the Palearctic Fauna non-passeriformes, 1965 by Charles Vaurie
http://datazone.birdlife.org/species/factsheet/saunderss-tern-sternula-saundersi/text
http://datazone.birdlife.org/species/factsheet/saunderss-tern-sternula-saundersi?gclid=EAIaIQobChMIv-np29SU5wIVBp53Ch1fwgNmEAMYASAAEgI50fD_BwE
2. Saunders’ Tern Sterna saundersi Birds of the Palearctic Fauna non-passeriformes, 1965 by Charles Vaurie
3. Saunders’ Tern Sterna saundersi Birds of Bahrain 1990-2 by Erik Hirschfeld
Saunders’Tern Sterna saundersi is the palest among little terns having a very pale grey mantle contrasting with usually three jet black outer primaries (P8-9-10) see here
https://birdingfrontiers.wordpress.com/2015/11/23/saunderss-and-little-terns-id-pitfalls/
and see here: