The Rhea is, above all other birds, a most characteristic representative of the avifauna of the Patagonian subregion.
Some members of the avifauna of Coahuila probably reached the State in this time.
Hence it is evident that in the Himalayas the avifauna along the snow-line differs greatly from that of the low, warm valleys.
The avifauna of Coahuila today is a mixture of the several mentioned elements.
This practice has declined, but the resultant vegetational changes and erosion have adversely affected the avifauna.
The avifauna of the Nilgiris is considerably smaller than that of the Himalayas.
A good many changes can take place in the avifauna of a country in that time.
These statements are applicable to the history of the avifauna of Micronesia.
Some representatives of the avifauna of the central and southern sections of the Central Plateau reach southwestern Coahuila.
The arriero is one of the most interesting members of Cuban avifauna.