Tumbler

Definition and stakes

John H. Robinson Our Domestic Birds: Elementary Lessons in Aviculture

But not all birds of Tumbler stock are good and persistent performers, and often birds that do not perform prefer liberty for a longer period to the food that is waiting for them in the loft. Birds have sometimes been compelled to remain in the air for a long time. As a result of this treatment of poor Tumblers a type of Tumbler has been produced which will perform more or less when ascending or descending, but which, having risen to a [Pg 249] high elevation, will remain for hours circling over its home and perhaps occasionally flying away and returning.
Source: Gutenberg

John H. Robinson Our Domestic Birds: Elementary Lessons in Aviculture

The common Tumblers perform in the air, usually at some distance from the ground, the tumbling of individual birds being an occasional feature of the evolutions of a flock circling about in the vicinity of its home. From this common Tumbler more highly specialized types have been developed. The breeding of these types has become something of an art, and in some cases the sport of flying them has become a well-organized recreation.
Source: Gutenberg

Portrait of Charles Darwin Charles Darwin The Variation of Animals and Plants under Domestication…

Occasionally a breed may be retained for some particular quality in a nearly unaltered condition in the same country, together with highly modified off-shoots or sub-breeds, which are valued for some distinct property. We see this exemplified in England, where the common Tumbler, which is valued only for its flight, does not differ much from its parent- form, the Eastern Tumbler; whereas the Short-faced Tumbler has been prodigiously modified, from being valued, not for its flight, but for other qualities.
Source: Gutenberg

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