| These valles, quebradas and puna are the three inhabited zones of the Andes. |
| Up again to a cold puna crossed by another frozen river and dotted with many llamas. |
| He published seminal papers on the ecology of the puna avifauna and on the breeding biology of several of its endemic species. |
| The empty expanses of the puna, as the grasslands are called in the Andes, correspond to the silence in which we walked. |
| The Spaniards when arriving in a hostile environment, such as the puna of Junin, were afraid of losing their horses because of the lack of conventional pastures and their inability to reproduce at high altitudes. |
| On reaching the puna, our party had made their day's journey, and would have halted. |
