great egret nesting question

[tellin]

Does anyone know if great egrets nest in the Humber Valley? I saw two fishing in the river near Bloor yesterday. I am aware that they nest on the Spit, but was wondering if there are any other locations in and near Toronto.

[KPaw]

I don't believe that they do nest there - they seem to show up in there in late July.  Same timing as their appearance at the Lower Duck Pond in High Park...