Basic nomenclatural history of Seaside Sparrow in relation to the genus Ammodramus and associated genera.

Reference Genus1 Type Species2 Remarks
1 Fringilla Linnaeus, 1758 “Fringilla” ( = Fringilla coelebs L., 1758) Wilson described this new species in volume 4 of American Ornithology and comments on habits, diet, and habitat.
96 Ammodramus Swainson, 1827 Oriolus caudacutus Gmelin, 1788 This genus was the taxonomic “home” for the Seaside Sparrow for much of its early and late nomenlatural history. Oriolus caudacutus Gmelin was mistakenly assigned by Swainson as the original type species of the genus. Oriolus caudacutus Gmelin is the earliest name of the “Sharp-tailed Sparrow” Ammodramus caudacuta (Gmelin); see Coturniculus and Ammospiza below.
271 Ammodramus Swainson, 1827 Oriolus caudacutus Gmelin, 1788 The Seaside Sparrow is placed together with “Sharp-tailed Sparrow” as relatives in a broad conception of Ammodramus, subdivided into 4 subgenera including Ammodramus and Coturniculus in this first edition of the Check-list (1886). The error concerning the type species for Ammodramus remains uncorrected in this and in the second edition.
272 Ammodramus Swainson, 1827 Oriolus caudacutus Gmelin, 1788 The treatment of Ammodramus in the second edition (1895) remains unchanged.
273 Ammodramus Swainson, 1827 Oriolus caudacutus Gmelin, 1788 Ridgway restricts Ammodramus to include only A. maritimus, A. caudacutus, and A. leconteii, and A. henslowii, while Coturniculus Bonaparte applies only to Grasshopper Sparrows. However, Ridgway comments that Coturniculus may belong to Ammodramus.
94 Coturniculus Bonaparte, 1838 Fringilla passerina Wilson, 1811 Oberholser emends the error in type species designation for Ammodramus. He points out that an earlier name for Coturniculus Bonaparte was found in Ammodramus Swainson, the real type of which is Ammodramus bimaculatus Swainson and was first use of the original description of A. bimaculatus, the western continental form of A. savannarum (Gmelin, 1788). Also see Ammospiza next. Thus, the genus Ammodramus Gmelin is now formally linked with Grasshopper Sparrow and not Saltmarsh Sparrow.
94 Ammospiza Oberholser, 1905 Oriolus caudacutus Gmelin, 1788 Because the generic name belongs to Coturniculus Swainson and the latter is a synonym of Ammodramus, as shown above, another name is needed for the group to which Oriolus caudacutus Gmelin previously applied (see AOU Check-list, second edition above). Thus, Oberholser introduced the genus Ammospiza, which carries Gmelin”s name as its type species and also is associated with “Sharp-tailed Sparrow” Ammospiza caudacuta.
274 Passerherbulus “Maynard”, Stone 1907 Ammodramus lecontei Sharpe, 1888 ( = Fringilla caudacuta Latham, 1790, not Oriolus caudacutus Gmelin, 1788) This Check-list edition (1910) affirmed application of Oberholser”s correction of Gmelin”s type species Oriolus caudacutus to “Sharp-tailed Sparrow” (= Passerherbulus caudacutus in this Check-list). However, based on an assessment in Stone (1907),the AOU Check-list followed the conclusion that Ammodramus Swainson, 1827, is a synonym of Passerherbulus Maynard, and because it is a prior name to Oberholser”s Ammospiza, 1905, Passerherbulus was adopted in the Check-list.
275 Ammospiza Oberholser, 1905 Fringilla caudacuta Wilson, 1811 ( = Oriolus caudacutus Gmelin, 1788) The fourth edition of the Check-list (1931) made another change resulting in a split of the Seaside Sparrow and its two closest “marshland” relatives into Ammospiza Oberholser leaving only Grasshopper Sparrow in the genus Ammodramus Gmelin.
44 Ammospiza Oberholser, 1905 Fringilla caudacuta Wilson, 1811 ( = Oriolus caudacutus Gmelin, 1788) Hellmayr follows AOU Check-list, fourth edition nomenclature leaving the two species of “marshland sparrows” in Ammospiza. Thryospiza Oberholser (1917) becomes a synonym of Ammospiza in Hellmayr (1938) and remains there.
276 Ammospiza Oberholser, 1905 Fringilla caudacuta Wilson, 1811 ( = Oriolus caudacutus Gmelin, 1788) This is the last AOU Check-list (1957) edition to treat subspecies. This Check-list retains the Seaside Sparrow and its marshland relative in Ammospiza and maintains Hellmayr”s breakdown of genera covering the drier “grassland” species (e.g., Ammodramus, Passerherbulus).
99 Ammospiza Oberholser, 1905 [as in AOU Check-list, 5th edition] Murray here makes the case that LeConte”s Sparrow not only belongs in Ammospiza Gmelin with the other “marshland” sparrows, but also it is closest relative to “Sharp-tailed Sparrow” A. caudacuta, thus implying Seaside Sparrow is basal (oldest) in the group.
277 Ammodramus Swainson, 1827 Ammodramus bimaculatus Swainson, 1827 ( = Fringilla savannarum Gmelin, 1789) Once again, Seaside Sparrow (most all grassland and marshland sparrows) is placed in the genus Ammodramus in a much broadened concept of the taxon. This decision is based on similarity in form and graminoid habitat and its implied monophyletic ancestry, which was doubted, cannot be tested until phylogenetic methods are developed. The enlarged genus covers species rank taxa from Junco to Spizella (see synonyms in Paynter and Storer 1970).
278 Ammodramus Swainson, 1827 Ammodramus bimaculatus Swainson, 1827 ( = Fringilla savannarum Gmelin, 1789) This AOU Check-list (1983) mostly follows Paynter and Storer (1970) on the Seaside Sparrow and most of its relatives with the exception of Passerculus Bonaparte, which covers Savannah Sparrows.
279 Ammodramus Swainson, 1827 [not identified] This checklist has a world view perspective on avian species, but is based broadly on the DNA hybridization work of 92, which in turn had little species-level resolution including on the Seaside Sparrow and its close relatives. The nomenclature on the Seaside Sparrow and its closest relatives follows the AOU Check-list sixth edition.
280 Ammodramus Swainson, 1827 Ammodramus bimaculatus Swainson, 1827 ( = Fringilla savannarum Gmelin, 1789) The nomenclature of interest here in the seventh edition of the AOU Check-list (1998) follows that of the sixth edition Check-list.
97 Ammospiza Oberholser, 1905 Fringilla caudacuta Wilson, 1811 ( = Oriolus caudacutus Gmelin, 1788) Finally, American Ornithological Society (A.O.S. replacing AOU) restores the “marshland” sparrows to Ammospiza Oberholser. This group of sparrows, now composed of four species (A. leconteii, A. maritima, A. nelsoni, and A. caudacuta) has maritima sister to both nelsoni and caudacuta, with leconteii sister to the other three. Ammospiza is confirmed as a monophyletic taxon (e.g., 100, 281).