Todd-Carriker : Birds of Santa Marta Region, Colombia. 433 



in the fall migration, this being the Fundacion specimen, shot Octo- 

 ber ii, 1915. The dates for the remainder run from April 21 up to 

 as late as May 5 — a date when the van of the species has already 

 reached the latitude of Pennsylvania on its northward migration. Mr. 

 Smith sent in a specimen from Don Diego dated May 3, 1899, and there 

 is another from the same collector, not recorded by Dr. Allen, from 

 Buritaca, September 18, 1899. 



396. Vireosylva chivi vividior Hellmayr. 



J'irco chivi agilis (not Lanins agilis Lichtenstein) Bangs, Proc. Biol. Soc. 

 Washington, XII, 1898, 142 ("Santa Marta")- — Allen, Bull. Am. Mus. 

 Nat. Hist., XIII, 1900, 172 (Bonda, Minca, Santa Marta, Quebra Concha, 

 and Cacagualito). — Bangs, Proc. New England Zool. Club, III, 1902, 73 

 ("Santa Marta"; meas.). — Allen, Bull. Am. Mus. Nat. Hist.. XXI, 1905, 

 293 (Bonda; descr. nest and eggs). — Chapman, Bull. Am. Mus. Nat. Hist., 

 XXXI, 1912, 159 (Santa Marta). 



Twenty-one specimens : Bonda, Minca, Mamatoco, Dibulla, Don 

 Diego, Santa Marta, La Tigrera, and Valencia. 



This is the form which has passed under the name agilis of Lich- 

 tenstein, until it was shown by Mr. Hellmayr (Noz'itatcs Zoologies, 

 XIII, 1906, 11) that this name was a pure synonym of chivi. Mr. 

 Hellmayr forebore renaming the northern form until recentlv ( Ver- 

 handlungen Ornithologischen Gcscllschaft in Baycrn, XI, 1915, 315) 

 when he called the Trinidad bird vividior. Comparison of the above 

 series with another from Trinidad discloses no essential differences. 

 The form appears to be well characterized as compared with a series 

 of true chivi from Bolivia. Such variation as obtains is due to sea- 

 son alone, wear fading the bright colors of the fresh plumage. 



A fairly common bird throughout the whole of the lowlands, outside 

 of the Goajira region proper, being characteristic of the Tropical 

 Zone, and not going above 2,500 feet. Recently it has been found 

 at Loma Larga, also on the flood-plain of the Rio Guatapuri, and at 

 Valencia. Its habits and habitat are the same as those of the other 

 species of the genus, and its nest also is similar. Dr. Allen describes 

 the two nests sent in by Mr. Smith from Bonda, collected May 16 and 

 June 2, as being of the " typical Virco style, being suspended from 

 the fork of a horizontal branch, the twigs supporting them being woven 

 into the rim of the nest. They are composed of grass blades and soft 

 vegetable fibers, mixed with a little plant down. . . . The eggs [two] 

 are white, with a few blackish dots, mostly about the larger end." 



