94 THE STORY OF THE BIRDS 



Steatornithidae or Oil Bird. The fourth (Cypseli) 

 includes the Cypselidae or Swifts, and the 

 Trochilidae or Humming- Birds. The fifth (Colii) 

 includes the Coliidae or Colies, an isolated little 

 group. The sixth (Trogones) includes the 

 Trogonidae or Trogons as its only representa- 

 tives. The seventh (Pici) includes the Galbulidse 

 or Jacamars, the Bucconidae or Puff Birds, the 

 Capitonidae or Barbets and Honey-guides, the 

 Rhamphastidae or Toucans, and the Picidae or 

 Woodpeckers and Wrynecks. It is absolutely 

 impossible even to give the leading characteristics 

 of such a number of diverse groups (containing 

 a grand total of nearly 1800 species) in the 

 space at our disposal. The affinity of the Owls 

 with the birds in this order and not with the Birds 

 of Prey is, however, specially worthy of mention ; 

 as is also the fact that among the species above 

 enumerated are to be found some with plumage 

 of the most gorgeous colours in the avine class. 



Next in order of sequence come the Psittaci- 

 formes or Parrots. Here we have another of 

 those homogeneous groups containing birds that 

 cannot readily be confused with those in any 

 other order. Although displaying an infinite 

 variety of colour, and differing greatly in size 

 and general appearance, the Parrots may be 



