The text reads, "Soph[omore].  He thinks himself a bird.  But --- he is."  From The Chsite yearbook of Carey High School, 1920.  See How to Hoodoo Hack a Yearbook.

Here's a bird singing a dirge, from Krag and Johnny Bear by Ernest Thompson Seton, 1902.

Here's a vulture with his leg in a sling, from St. Nicholas magazine, 1877.

From The Oxford Thackeray.

From Stories in Rhyme for Holiday Time, written by Edward Jewitt Wheeler and illustrated by Walter Satterlee, 1884.

From Letters from the Raven, Being the Correspondence of Lafcadio Hearn with Henry Watkin, 1907.

"Birds are seen approaching in the air carrying nests full of eggs in their beaks."  From The Paradise of Birds by William John Courthope and illustrated by Lancelot Speed, 1889.

Here's a saintly jackdaw aware of its own halo, from Illustrated British Ballads, Old and New, edited by George Barnett Smith, 1886.

From the Manly Palmer Hall Collection of Alchemical Manuscripts.

Here is revealed one of the secrets of parrot thought transference, via Smithsonian Libraries (who left the source blank.  We guess with a name like Smithsonian, they are the source).  See Secrets of Chicken Whispering.