Invasion
Invasion Description
1st Record: British Columbia/Fraser River (1891, nonbreeding, occasional migrant (Carl et al. 1967; Carl and Giguet 1972)
Geographic Extent
British Columbia/Fraser River (1891, nonbreeding, occasional migrant (Carl et al. 1967; Carl and Giguet 1972)
Vectors
Level | Vector |
---|---|
Probable | Natural Dispersal |