According to info received by StampNews.com Romfilatelia proposed to bird lovers and philatelists a special postage stamp issue illustrating Songbirds. Also called Oscines (from the Latin word oscen meaning songbird), these were assigned by ornithologists to the order Passeriformes, being characterized by the diversity of size and plumage. The issue was released on the 6th of February and is now available for purchasing.
Songbirds form one of the two major lineages of extant perching birds, the other being the Tyranni which are most diverse in the Neotropics and absent from many parts of the world. These have a simpler syrinx musculature, and while their vocalizations are often just as complex and striking as those of songbirds, they are altogether more mechanical sounding.
There is a third perching bird lineage, the Acanthisitti from New Zealand, of which only two species remain alive today.
There is evidence to suggest that songbirds evolved 50 million years ago in the part of Gondwana that later became Australia, New Zealand, New Guinea and Antarctica, before spreading around the world.