Wikipedia:Articles for deletion/List of Barn Swallows on Postage Stamps
The sources are reliable, but don't discuss the topic as a whole.  Neither do other sources that I can find.  Fails  and 
— User:Hog, 14:08, 30 April 2020 (UTC)
Stance: delete
Cited policy: WP:LISTN||WP:INDISCRIMINATE (Wikipedia:Notability)