03 July (Botswana ) within release Birds goes into circulation Stamp Black Bustard (Afrotis atra) face value 1 Botswana thebe
Stamp Black Bustard (Afrotis atra) in catalogues | |
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Michel: | Mi:BW 198 |
Stamp is square format.
Also in the issue Birds:
Data entry completed
53%
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Stamp Black Bustard (Afrotis atra) in digits | |
Country: | Botswana |
Date: | 1978-07-03 |
Print: | Photogravure |
Perforation: | comb 14 |
Format: | Stamp |
Face Value: | 1 Botswana thebe |
Stamp Black Bustard (Afrotis atra) it reflects the thematic directions:
Birds (Aves), a subgroup of Reptiles, are the last living examples of Dinosaurs. They are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the 5 cm (2 in) bee hummingbird to the 2.75 m (9 ft) ostrich. They rank as the class of tetrapods with the most living species, at approximately ten thousand, with more than half of these being passerines, sometimes known as perching birds. Birds are the closest living relatives of crocodilians.