Rotary wing aircraft. The first rotary-wing aircraft registered in Canada was a Pitcairn PCA-2 gyroplane in 1931. A later Pitcairn gyroplane model PAA-1 was registered in 1932 and for about 20 years operated in a variety of roles including barnstorming, agricultural and forestry spraying, and photography.
The greylag goose was one of the first animals to be domesticated; this happened at least 3,000 years ago in Ancient Egypt, the domestic subspecies being known as A. a. domesticus. As the domestic goose is a subspecies of the greylag goose they are able to interbreed, with the offspring sharing characteristics of both wild and domestic birds.
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