Dresser (1866:37) took an unspecified number of specimens of the Willet at the "Boca Grande" in July and August, but actual breeding in Tamaulipas was first established by C. R. Robins, who found a "scattered colony of breeding Willets" and took a female with an egg in the oviduct on May 9, 1949, near Tepehuaje (Sutton, 1950:135). Sutton (_op. cit._) has discussed the characters of this specimen and of birds from Cameron County, Texas. The specimen from Tepehuaje reportedly is closer to _C. s. inornatus_ than to _C. s. semipalmatus_ both in size and color, and birds from Cameron County are intermediate between the two subspecies in size but like _C. s. inornatus_ in color. TABLE 3.--MEASUREMENTS IN MILLIMETERS OF SPECIMENS OF CATOPTROPHORUS SEMIPALMATUS FROM THE BARRIER ISLAND OF TAMAULIPAS =============+======+======+========+========+======== SEX AND | | | | | Weight CATALOGUE | Wing | Tail | Full | Tarsus | in NUMBER | | | culmen | | grams -------------+------+------+--------+--------+-------- [M] 38921[A] | 197 | 80.6 | 61.0 | 59.0 | 211 [M] 38922[A] | 198 | 74.4 | 61.9 | 57.9 | 264 [M] 38927 | 194 | 75.5 | 60.4 | 56.4 | 231 [F] 38923[A] | 201 | 71.0 | 59.0 | 55.4 | 269 [F] 38924 | 199 | 71.0 | 61.3 | 59.0 | 280 -----------+------+------+--------+--------+-------- [Footnote A: Specimens in worn breeding plumage.] Measurements of our five adults from the barrier island are presented in Table 3 for comparison with those of _C. s. semipalmatus_ and _C. s. inornatus_ given by Ridgway (1919:316-319). Like the specimens from Cameron County examined by Sutton (_op. cit._), our birds are intermediate in size between average-sized individuals of the two named subspecies. In color and pattern, we find that our specimens in breeding plumage fall within the range of variation of _C. s. semipalmatus_ as exemplified by five specimens in nearly identical states of wear and fading in the Museum of Natural History.