I can not be absolutely sure this is a doves nest, but research tells me it could be. 

Most nests are in trees, both deciduous and coniferous. Sometimes, they can be found in shrubs, vines, or on artificial constructs like buildings or hanging flower pots. When there is no suitable elevated object, Mourning Doves will nest on the ground.

References to Mourning Doves appear frequently in Native American literature. Mourning Dove imagery also turns up in contemporary American and Canadian poetry.

 Mourning Dove is an important native writer to understand
because she experienced and wrote about the conversion and
assimilation period in Native American history. She lived and
wrote when American Indian children were being removed from
Reservations and placed into boarding schools for indoctrination
and assimilation into white society. Her writings document the
loss of identity and unfair treatment experienced especially
by mixed bloods. Mourning Dove’s father was Okanogan and her
mother was from the Colville tribe and a white father.