01 April (Biafra ) within release Definitives from Nigeria with overprint SOVEREIGN/BIAFRA goes into circulation Stamp Gray Parrot (Psittacus erithacus) face value 9 Biafran penny
|Stamp Gray Parrot (Psittacus erithacus) in catalogues|
|Michel:||Mi: NG-BI 10|
|Stamp Number:||Sn: NG-BI 10|
|Yvert et Tellier:||Yt: NG-BI 15|
Stamp is square format.
Also in the issue Definitives from Nigeria with overprint SOVEREIGN/BIAFRA:
Data entry completed
|Stamp Gray Parrot (Psittacus erithacus) in digits|
|Face Value:||9 Biafran penny|
Stamp Gray Parrot (Psittacus erithacus) 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.
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