Final answer:
The question seems to be related to a sorority's historical event, but the provided information is not directly relevant to the Stork's Nest as a national project.
Step-by-step explanation:
The question about when the Stork's Nest was adopted as the national project of a sorority seems to be referring to a historical event related to the operations or initiatives of a particular sorority. However, the provided reference information about nurses Ella Mae Bongard, Clare Gass, Mott, and Stanton pertains to historical events that are not directly related to the Stork's Nest as a national project of a sorority. It appears there may be some confusion in the context provided, as the reference information discusses individuals involved in historical events across Europe and the first national convention devoted to an unspecified issue, rather than the adoption of a sorority's national project.