Stamp: Knob-billed Duck (Sarcidiornis melanotos) (Botswana 1967)
Knob-billed Duck (Sarcidiornis melanotos) (Botswana 1967)
03 January (Botswana ) within release Birds goes into circulation Stamp Knob-billed Duck (Sarcidiornis melanotos) face value 50 Botswana cent
| Stamp Knob-billed Duck (Sarcidiornis melanotos) in catalogues | |
|---|---|
| Michel: | Mi:BW 30 |
| Stamp Number: | Sn:BW 30 |
Stamp is square format.
Also in the issue Birds:
- Stamp - Grey Go-away-bird (Crinifer concolor) face value 25;
- Stamp - Golden Oriole (Oriolus oriolus) face value 1;
- Stamp - African Hoopoe (Upupa africana) face value 2;
- Stamp - Groundscraper Thrush (Turdus litsitsirupa) face value 3;
- Stamp - Blue Waxbill (Uraeginthus angolensis) face value 4;
- Stamp - Secretarybird (Sagittarius serpentarius) face value 5;
- Stamp - Eastern Yellow-billed Hornbill (Tockus flavirostris) face value 7;
- Stamp - Crimson-breasted Shrike (Laniarius atrococcineus) face value 10;
- Stamp - Malachite Kingfisher (Corythornis cristata) face value 15;
- Stamp - African Fish-Eagle (Haliaeetus vocifer) face value 20;
- Stamp - Common Scimitarbill (Rhinopomastus cyanomelas) face value 35;
- Stamp - Knob-billed Duck (Sarcidiornis melanotos) face value 50;
- Stamp - Crested Barbet (Trachyphonus vaillantii) face value 1;
- Stamp - Diderik Cuckoo (Chrysococcyx caprius) face value 2;
Stamp Knob-billed Duck (Sarcidiornis melanotos) 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.
