Todd-Carriker : Birds of Santa Marta Region, Colombia. 135 



writer below Tucurinca, near a lagoon in the forest, September 20, 

 1915. This example lacks the long plumes of the crown, and is prob- 

 ably immature, or at least in non-breeding dress. 



In July, 1920, one was seen on the flood-plain of the Rio Badillo and 

 another on the flood-plain of the Rio Guatapuri near Valle de Upar. 

 The species has an extensive range in tropical South America, but 

 does not appear to be common anywhere. 



10. Butorides virescens virescens (Linnaeus). 



Butorides virescens Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 125 



(Bonda). — Allen, Auk, XVII, 1900, 364 (Bonda). — Allen, Bull. Am. Mus. 



Nat. Hist., XXI, 1905, 275 (Bonda). — Todd, Ann. Carnegie Mus., VII, 1911, 



410, in text ([Santa Marta region], Colombia; crit.). 

 Butorides virescens hypernotius Oberholser, Proc. U. S. Nat. Mus., XLII, 



1912, 549 (Mamatoco and Bonda; crit.). 



Nine specimens: Bonda, Playa Concha, Trojas de Cataca, and Fun- 

 dacion. 



The five adults, together with a few specimens from other regions, 

 measure as follows : 



No. Sex. Locality. Wing. Tail. Bill. Tarsus. 



8958 £ Bonda, Colombia 185 70 61 53 



9204 $ Playa Concha, Colombia 186 71 62 52 



43 2 S9 $ Trojas de Cataca, Colombia 19° 7 1 61 48 



43290 cf Trojas de Cataca, Colombia 187 70 64 49 



49651 5 Fundacion, Colombia 1S2 64 63 52 



23874 $ Cuabre, Costa Rica 175 6 3 63 50 



28332 $ El Pozo de Terraba, Costa Rica 172 63 60 49 



Light adult males from eastern U. S., average 179 65 61 51 



According to the latest authority on the subject these specimens 

 should belong to the race hypernotius, described as being practically 

 the same as typical virescens in color, but differing therefrom in smal- 

 ler size. As may be seen from the above table of measurements, our 

 Colombian birds at least actually average larger, if anything, than 

 northern specimens, which they closely resemble in color. As they 

 were all taken in October and December, it is possible that they are 

 merely winter resident individuals from farther north. But whether 

 this be true or not, we certainly cannot see our way clear to the 

 recognition of a subspecies hypernotius on such slender characters. 



The Green Heron seems to be less common here as a rule than B. 



