Evening Republican, Volume 23, Number 186, Rensselaer, Jasper County, 3 August 1920 — Maternal Impressions In Canaries. [ARTICLE]

Maternal Impressions In Canaries.

An Interesting contribution to the voluminous literature on the subject of “maternal Impressions'’ is made by Dr. W. F. Schrader, of Fdrt Wayne, Ind., in Clinical Magazine for December, 1919. Dr. Schrader has been breeding canaries quite extensively for eight years Until last July no crippled or defbrmed chick had ever been found among his nestlings. At that time dally flights of an army airplane over the city invariably threw the birds Into a state of excitement and terror, and during this period twelve eggs were laid. Only seven of the eggs hatched, and every chick of the seven was deformed; three had no anal vents, two had extra pairs of wings, and two had twisted legs held at full length beneath the bodies. The same parent birds have since raised two broods each, and there was not a single crippled or deformed bird among them I — Scientific American.