Index. 





flavirostris madrcnsis, Columba, 393 



minima, Columba, 391, 392 



Phaethon, 440 

 flaviventre, Camptostoma, 721 

 flaviventris, Cyclorhis, 775 



Empidonax, 327, 700 



Tyrannula, 700 

 flavogastra subpagana, Elainea, 719 

 flavolineatum, Haemulon, 298 

 flavotinctus, Picumnus, 594 

 flavoviridis flavoviridis, Vireosylva, 784 



Vireosylva, 784 



Phyllomanes, 784 



Vireo, 784 

 Floricola constanti, 545 



constanti constanti, 510, 545 



longirostris, 544 



superba, 544 



superba pallidiceps, 544 



superba superba, 510, 544, 545 

 Florida caerulea, 429 



caerulea caerulea, 429 

 florida arcaei, Calospiza, 863 



Calospiza, 863 



Calliste, 863 



Muscivora, 686 



Tangara, 326, 330, 863 

 Florisuga mellivora, 511, 517, 522 

 fluviatilis, Ischnura, 209, 210 



bizonota, Ischnura, 210 

 foetens, Cathartes, 442 

 forceps, Peristicta, 212 

 forficata, Muscivora, 686 

 forficatus, Elanoides, 444, 467 



Falco, 467 



Milvulus, 686 

 forficula, Lestes, 92 

 Formicariidae, 329, 613 



Key to the Costa Rican Species, 595 

 Formicarius analis, 623 



castaneiceps, 329, 625, 628 (= rufi- 

 pectus) 



hoffmanni, 325, 598, 623, 624 



hoffmanni hoffmanni, 623 



moniliger hoffmanni, 329 



nigricapillus, 323, 329, 330, 598, 623 



rufipectus, 323, 330, 597, 623, 625 

 626 



thoracicus, 625 



umbrosus, 329, 598, 623, 624 

 Formicivora boucardi, 609, 610 



boucardi virgata, 595, 596, 610 



schisticolor, 609, 610 



virgata, 610 

 formicivorus, Melanerpes, 585 



striatipectus, Melanerpes, 321, 582, 



585 

 formosa, Azurea, 774, 775 



formosa, Calocitta, 774 



Geothlypis, 908 



Oporornis, 808 



Sylvia, 808 

 formosus, Oporonis, 808 

 fosteri, Argia, 118, 121, 125, 128, 151 

 Foster, W. T., 78 

 fragilis, Perilestes, 11 5-1 17 

 Founder's Day, fourteenth celebration, 



917 

 franciscae, Callispiza, 858 



Calliste, 858 

 franklini, Larus, 405 

 frantzii, Callispiza, 865 



Calliste, 864 



Catharus, 321, 747 



Elainaea, 718 



Elainia, 360 



frantzii, Catharus, 747 



frantzii, Elaenia, 718 



frantzii, Elainea, 718 



Nothocercus, 324, 377 



Ortalida, 383 



Pteroglossus, 572, 575 



Tetragonops, 571 



Tinamus, 360 

 Frantzius, Dr. A. von, 361 

 fraseri, Psaris, 663 



Tityras, 663 

 frater, Oxyrhamphus, 786 

 Fregata aquila, 440 

 Fregatidae, 440 



freirense, Acanthagrion cuyabae, 168 

 frenatus, Rivulus, 51 

 Fringilla gutturalis, 891 

 Fringilla oryzivora, 825 



rubra, 855 

 Fringillidae, 894 

 fulgida, Lais, 81 

 Fulica americana, 412 



cajanea, 408 



martinica, 411 

 fulica, Colymbus, 412 



Heliornis, 323, 412 

 fuliginea, Diastatops, 260 

 fuliginosa, Sterna, 414 

 fuliginosus, Buteo, 457, 458 

 Fuligula affinis, 437 

 Fulix affinis, 437 

 fulvicollis, Neoneura, 212 

 fulvicrissa, Euphonia, 871 

 fulvigula, Stelgidopteryx, 790 

 fulvigularis, Myiobius, 706 



Terenotriccus, 706 

 fulvipennis, Stelgidopteryx, 790, 791 

 fulviventris, Myrmotherula, 323> 599. 



600, 607, 612 

 fulvus, Bodianus, 297 



