Parent: Ammodramus (Grassland sparrows)

└─ Ammodramus maritimus (Seaside sparrow)

└─── Ammodramus maritimus fisheri

└─── Ammodramus maritimus macgillivraii

└─── Ammodramus maritimus maritimus

└─── Ammodramus maritimus mirabilis (Cape sable seaside sparrow)

└─── Ammodramus maritimus nigrescens (Dusky seaside sparrow)

└─── Ammodramus maritimus pelonotus

└─── Ammodramus maritimus peninsulae

└─── Ammodramus maritimus sennetti