Se-tenant: Troglodytes troglodytes,Regulus ignicapillus,Alauda arvensis (Burundi 1970)
Troglodytes troglodytes,Regulus ignicapillus,Alauda arvensis (Burundi 1970)
16 November (Burundi ) within release Birds goes into circulation Se-tenant Troglodytes troglodytes,Regulus ignicapillus,Alauda arvensis face value 4*10 Burundian franc
| Se-tenant Troglodytes troglodytes,Regulus ignicapillus,Alauda arvensis in catalogues | |
|---|---|
| Michel: | Mi:BI 649-652 |
Se-tenant is square format.
Also in the issue Birds:
- Se-tenant - Lanius excubitor,Sturnus vulgaris,Motacilla flava,Riparia ri face value 4*8;
- Se-tenant - Troglodytes troglodytes,Regulus ignicapillus,Alauda arvensis face value 4*10;
- Se-tenant - Woodchat Shrike; Common Rock; Black Redstart; Ring Ouzel face value 4*14;
- Stamp - Lanius Senator face value 14;
- Stamp - Turdus Torquatus Alpestris face value 14;
- Stamp - Phoenicurus Ochruros face value 14;
Se-tenant Troglodytes troglodytes,Regulus ignicapillus,Alauda arvensis 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.
Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). All animals are motile, meaning they can move spontaneously and independently, at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance.
