_Egg dates._--Massachusetts: 52 records, May 20 to July 7; 29 records, May 29 to June 10, indicating the height of the season. Connecticut: 39 records, May 25 to June 25; 25 records, June 1 to 10. South Carolina: 20 records, April 10 to June 24; 10 records, April 30 to May 11. PARULA AMERICANA AMERICANA (Linnaeus) SOUTHERN PARULA WARBLER PLATE 22 HABITS This southern race of our well-known blue yellow-backed warbler is said to breed from the District of Columbia southward to Florida and Alabama. William Brewster (1896), in describing and naming the northern race, restricted the Linnaean name _americana_ to the southern bird because it was evidently based on Catesby's excellent plate, drawn from a bird taken in South Carolina. In his comparative diagnoses of the two forms, he describes the southern bird as "averaging slightly smaller but with longer bill. Adult male with more yellow on the under parts and less black or blackish on the lores and malar region; the dark collar across the jugulum narrow, obscure, often nearly wanting; the chest pale, diffuse russet, without obvious markings." He admits that no one of these characters is quite constant, the best one being the depth and definition of the reddish brown on the chest. And he suggests that the distribution of the two forms in the breeding season may be roughly correlated with the distribution of _Usnea_ in the north and of _Tillandsia_ in the south, in which the two forms, respectively, seem to prefer to build their nests. This, however, is not strictly accurate or universal (for example, see some remarks by M. G. Vaiden, under the preceding form, on the breeding of this species in two different localities in Mississippi). Arthur T. Wayne (1910) says of the haunts of the southern bird in South Carolina: "As soon as the sweet gum trees begin to bud, the song of this beautiful bird is heard. It heralds the approach of spring and is one of the first warblers to arrive which does not winter. The range of this species in the breeding season is entirely governed by the presence or absence of the Spanish moss, and where the moss is growing in profusion the birds are common, but where the moss is absent the birds are absolutely not to be found."