NPSpecies

One record on May 30, 1963, at Hidden Lake by P. C. Shelton (Johnsson, Shelton, and Jordan 1982). Krefting et al. (1966) also noted one record.; Data Source: Johnsson, Shelton, and Jordan 1982. Krefting, Lee, Shelton, and Gilbert 1966.

Park is just north of breeding range (Sibley 2000). North of reported range, but data from Minnesota suggest northward trend since 1960 (Johnsson, Shelton, and Jordan 1982).; Data Source: Sibley 2000. Johnsson, Shelton, and Jordan 1982.

Park Species Detail: Recorded as Green heron (Butorides striatus) in Johnsson, Shelton, and Jordan 1982. Recorded as Green heron (Butorides virescens) in Sibley 2000. Name change in 1998 from Green-backed heron (Butorides striatus) to Green Heron (Butorides virescens). The History of North American Bird Names in the American Ornithologists' Union Checklists 1886 - 2000. Website accessed on September 23, 2005, (http://members.aol.com/darwinpage/zoo/AOUa.htm#Herons)., Park Species Data Source: Sibley 2000. Johnsson, Shelton, and Jordan 1982. Krefting, Lee, Shelton, and Gilbert 1966.