Although Coturnix introductions failed in the late 1950's, it was learned in Arkansas that birds survived longest after autumn releases especially where fallow fields were numerous, that Coturnix favored grasslands whereas the bobwhite preferred shrublands, and that Coturnix occurred singly, pairing only in the breeding season.
James, Douglas A.
"Failure to Establish Feral Coturnix Quail Populations in Arkansas in the Late 1950's,"
Journal of the Arkansas Academy of Science: Vol. 26
, Article 9.
Available at: https://scholarworks.uark.edu/jaas/vol26/iss1/9