Order III. PICI. Fam. XXIII. PICIDÆ, or WOODPECKERS. 248. _Campephilus boiæi_ (Wagl.). (Boie's Woodpecker.) 17 249. _Campephilus schulzi_ (Cab.). (Schulz's Woodpecker.) 18 250. _Dryocopus erythrops_ (Val.). (Red-faced Woodpecker.) 18 251. _Picus mixtus_, Bodd. (Varied Woodpecker.) 19 252. _Picus cactorum_, d'Orb. et Lafr. (Cactus Woodpecker.) 19 253. _Chloronerpes affinis_ (Wagl.). (Allied Woodpecker.) 20 254. _Chloronerpes frontalis_, Cab. (Red-fronted Woodpecker.) 20 255. _Chloronerpes aurulentus_ (Licht.). (Gold-backed Woodpecker.) 21 256. _Chloronerpes tucumanus_, Cab. (Tucuman Woodpecker.) 21 257. _Chrysoptilus cristatus_ (Vieill.). (Red-crested Woodpecker.) 21 258. _Leuconerpes candidus_ (Otto). (White-bellied Woodpecker.) 23 259. _Colaptes longirostris_, Cab. (Long-billed Woodpecker.) 23 260. _Colaptes agricola_ (Malh.). (Pampas Woodpecker.) 24 Order IV. COCCYGES. Fam. XXIV. ALCEDINIDÆ, or KINGFISHERS. 261. _Ceryle torquata_ (Linn.). (Ringed Kingfisher.) 26 262. _Ceryle amazona_ (Lath.). (Amazonian Kingfisher.) 27 263. _Ceryle americana_ (Gm.). (Little Kingfisher.) 27 Fam. XXV. TROGONIDÆ, or TROGONS. 264. _Trogon variegatus_, Spix. (Purple-breasted Trogon.) 29 265. _Trogon surucura_, Vieill. (Azara's Trogon.) 29 Fam. XXVI. BUCCONIDÆ, or PUFF-BIRDS. 266. _Bucco maculatus_ (Gm.). (Spotted Puff-bird.) 30 Fam. XXVII. CUCULIDÆ, or CUCKOOS. 267. _Crotophaga ani_, Linn. (Black Ani.) 31 268. _Guira piririgua_ (Vieill.). (Guira Cuckoo.) 32 269. _Diplopterus nævius_ (Gm.). (Brown Cuckoo.) 35 270. _Piaya cayana_ (Linn.). (Chestnut Cuckoo.) 36 271. _Coccyzus americanus_ (Linn.). (Yellow-billed Cuckoo.) 37 272. _Coccyzus melanocoryphus_, Vieill. (Black-billed Cuckoo.) 38 273. _Coccyzus cinereus_, Vieill. (Cinereous Cuckoo.) [Plate XIII.] 38 274. _Coccyzus pumilus_, Strickl. (Dwarf Cuckoo.) 39 Fam. XXVIII. RHAMPHASTIDÆ, or TOUCANS. 275. _Rhamphastos toco_, Gm. (Toco Toucan.) 40 Order V. PSITTACI. Fam. XXIX. PSITTACIDÆ, or PARROTS. 276. _Conurus patagonus_ (Vieill.). (Patagonian Parrot.) 41 277. _Conurus acuticaudatus_ (Vieill.). (Sharp-tailed Parrot.) 42 278. _Conurus mitratus_, Tsch. (Red-headed Parrot.) 43 279. _Conurus molinæ_, Mass. et Souanc. (Molina's Parrot.) [Plate XIV.] 43 280. _Bolborhynchus monachus_ (Bodd.). (Green Parrakeet.) 43