470 REPTILES AND BIRDS. 
into the plains with the early frosts of winter. They are found 
diffused over all the south of Europe. 
The Piculet (Picumnus pygmaeus) has form and habits very 
similar to the Creeper, but the beak is stronger and more boldly 
curved. ‘They are natives of Brazil and Guiana. 
Fig. 190,—Columbian Thornbills. 
The Oven Birds (Aurnartus fuligtinosus, Fig. 189) live singly or in 
pairs in the plains of Chili, Brazil, and Guiana. ‘They feed princi- 
pally on seeds, but also on insects. ‘They take up their residence 
with much confidence in the neighbourhood of man’s dwellings. 
Their nests are remarkable, being in the form of an oven, whence 
their name. ‘This structure is built on trees, on palisades, or even 
rocks. It is remarkable for its size when compared with its architect 
ae 
