Note 12 — HISTORICAL NOTES ON HARRIS’S SPARROW (ZONOTRICHIA QUERULA).
Reading edition
The Status of the Harris’s Sparrow in Wisconsin and Neighboring States. By Alvin R. Cahn. Bull. Wis. Nat. Hist. Soc., Vol. XIII, No. 2, pp. 102-108. Also in numerous lists and field notes published in ‘The Auk,’ ‘Wilson Bull.’ and the other bird journals.