Assertion: pigeon's bird | /r/HasProperty | criticised by french zoologists
Facets:
value: in 1893
type: TEMPORAL
Source sentences:
text: The claim that the bird fed on river molluscs was criticised by the French zoologists Alphonse Milne-Edwards and Emile Oustalet in 1893, with the later agreement of the American ornithologist James Greenway in 1967, as blue pigeons are principally arboreal.