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Variation of Birds in a State of Nature by Frank Russell, 1892

Variation of Birds in a State of Nature by Frank Russell, 1892, Page 19

17 

Branta canadensis (L).

The Canada Goose is gregarious migratory water bird. Their wide distribution and habits must have an important [baring?] upon their variability. The specimens studied were from the states of Iowa Nebraska and Texas the greater past bring taken of Wood [name?] and [name?] in Central Nebraska. 

As an example of the advantage of studying a large series of skins it will be noticed that [wheres?] in the diagrams, variation is evident it is so uniformly manifest that it is evident by not fortuitous or [illegible] to error of measurement. Thirty four or 6.8% of the five hundred had a distinct yellow wash upon [breast?]. in some cases this was accompanied by a similar coloration of the cheek [patelus?]. Five of these were deep yellow or [illegible]. In equal number of both sexes are [illegible], so that it is not a sexual variation. They were from different localities but all killed Oct or Nov. Both large and small birds exhibit the same characteristic. Five of [them have the cheek patch divided nearly all have it mottled.] The theory is advanced that the color may be [derived?] from certain algae? with which the parts affected may come in contact in certain districts. This appears extremely [improbable?] from the fact that the [illegible] appears

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17 Branta canadensis (L). The Canada Goose is gregarious migratory water bird. Their wide distribution and habits must have an important [baring?] upon their variability. The specimens studied were from the states of Iowa Nebraska and Texas the greater past bring taken of Wood [name?] and [name?] in Central Nebraska. As an example of the advantage of studying a large series of skins it will be noticed that [wheres?] in the diagrams, variation is evident it is so uniformly manifest that it is evident by not fortuitous or [illegible] to error of measurement. Thirty four or 6.8% of the five hundred had a distinct yellow wash upon [breast?]. in some cases this was accompanied by a similar coloration of the cheek [patelus?]. Five of these were deep yellow or [illegible]. In equal number of both sexes are [illegible], so that it is not a sexual variation. They were from different localities but all killed Oct or Nov. Both large and small birds exhibit the same characteristic. Five of [them have the cheek patch divided nearly all have it mottled.] The theory is advanced that the color may be [derived?] from certain algae? with which the parts affected may come in contact in certain districts. This appears extremely [improbable?] from the fact that the [illegible] appears