A term used in birding to describe the process of combining separate species into categories of a single species.

An example of this is that older bird guides for North America will have separate entries for a number of types of Junco whilst more recent editions show these as multiple races of a single species.

Antonym: splitting

Lump"ing, a.

Bulky; heavy.

Arbuthnot.

 

© Webster 1913.

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