Detailed map of southern Texas showing (1) sampling locations for sites 1–3, (2) bays around Corpus Christi relevant to our discussion of Ammodramus maritimus cf. sennetti, and (3) estimation of scaled effective genetic population sizes (θ) and directional migration rates (±95% CIs) estimated with the program migrate-n.

Detailed map of southern Texas showing (1) sampling locations for sites 1–3, (2) bays around Corpus Christi relevant to our discussion of Ammodramus maritimus cf. sennetti, and (3) estimation of scaled effective genetic population sizes (θ) and directional migration rates (±95% CIs) estimated with the program migrate-n.