104 Ji"ALCONID^. 



Juv. Nigricans, pliimis omnibus anguste ochraceo fasciatim termiDatis ; pileo et coipore subtus ochrasoenti- 



rufis vel ochraceis, nigro longitudinaliter striatis, axillaribus, hj-pochondriis et subcaudalibus nigro 



transfasciatis : rostro corneo ; pedibus brunnescentibus ; iride brunnea. (Descr. d pull, ex Calobre. 



Mtis. nostr.) 



Hab. Mexico, El Salto in San Luis Potosi, Tampico {Richardson), Paso de la Milpa 



{Ferrari-Perez ^o), Jalapa {de Oca «), Cordova {Salle % Uvero {Sumichrast ^^), Playa 



Vicente {Boucard'^), Chimalapa, Isthmus of Tehuantepec ^^ {Sumichrast), Tizimin 



in N. Yucatan 19 {Gaumer); British Honduras, Cayo in the Western District 



{Blancaneaux) ; Guatemala, Peten, Lanquin ^ lo {0. S. & F. D. G.), Cahabon 



{Champion), Sierra de las Minas, Paraiso {Richardson); Honduras {Leyland% 



Ruatan I. {Gaumer " '^^); Nicaragua, San Rafael del Norte, Matagalpa {Richardson) ; 



Panama, Cordillera de Tole, Calovevora ", Calobre ", Santa Fe ^^ {E. Arce), Line 



of Railway {M'^Leannan i^). — South America generally, from Colombia and Guiana 



to Bolivia and Brazil ^''. 



Though unable to give precise data, judging from the series of specimens in the 

 British Museum, 1. plumhea is possibly a resident throughout the greater part of 

 South America. Natterer obtained twenty-five examples in Brazil, but only between 

 September and January, which leads one to suppose that it is a winter visitant in 

 that country. There are none but adult examples from Guiana, Amazonia, Bolivia, 

 and Brazil in the Museum ; however, young birds occur in collections from Colombia 

 and Ecuador, and there is a nestling from Calobre ^^ in Panama. The Nicaraguan 

 specimens in our collection were obtained by Mr. Richardson in March and April, 

 others were procured from Guatemala in April, July, and November, and near Lanquin 

 we saw one building in a pine-tree, patches of which are to be found in many parts 

 of Alta Vera Paz ^ lo. 



Mr. Richardson procured examples at Tampico in June and from San Luis Potosi 

 in July, so the species doubtless breeds in these provinces. Sumichrast ^^, however, 

 states that in Tehuantepec it is only a bird of passage, as also on the coast of Vera 

 Cruz ; at San Andres Tuxtla he saw several flocks travelling northwards, but these 

 may have been the allied species /. mississippiensis. 



In Yucatan I. plumhea is not a common bird, and Gaumer obtained but one specimen 

 at Tizimin at the end of March. 



2. Ictiuia mississippiensis. 



Falco misisippiensis, Wils. Am. Orn. iii. p. 80, t. 25. f. 1 '. 



Ictinia mississippiensis, Salv. Ibis, 1861, p. 355 ^ ; Sharpe, Cat. Birds Brit. Mus. i. p. 365 ' • 



Bendire, Life Hist. N. Amer. Birds, p. 177, t. 5. f. 5 * ; Fisher, Bull. U. S. Dep. Agr. 



no. 3, p. 24, t. 2 '. 



Supra schistacea, scapularibus et tectricibus alarum nigricantioribus ; remigibus nigricantibus, primariis vix 

 castaneo longitudinaliter notatis ; secundariis clare scbistaceis, albo terminatis ; cauda nigra ; pUeo clare 

 cinereo, interscapulio quoque pallida schistaceo adumbrate ; loris et palpebra nigris ; facie laterali et 



