Du, which are also exposed to show the internal cists and outer kerbstones. Pollen analysis of the buried soil under the barrow showed that a grass-heath vegetation community dominated the summit of Fan Foel immediately prior to construction of the barrow, with hazel scrub on the lower slopes and mixed woodland with oak especially at lower levels. Charcoal was also found in the buried soil, and may indicate burning to improve soil cultivation, or alternatively, local use of fire as a beacon, as suggested by the name of the range of the Brecon Beacons. Both Pen y Fan and Corn Du are visible on the horizon about away. The climate was warmer than currently, judging by the evidence of extensive settlement and cultivation of the high land during the British Bronze Age. Wildlife There are numerous different species of bird in the area, and they include the red kite, common buzzard, kestrel, carrion crow, common raven and skylark to name a few of the most obvious residents. The kestrel and buzzard are widely distributed, but the raven is restricted to the higher mountains. The large birds can often be seen from the summit in good weather soaring on thermals or updrafts from the cwm below, sometimes in groups, especially for buzzards. Game birds include the Red grouse, Partridge and Pheasant although few shoots are now organised on the mountains. The birds of prey are thus not persecuted as in other mountain areas (especially the Pennines) and thrive accordingly. The Red Kite survived decades of persecution in this area, and has now repopulated much of England and Wales, thanks to campaigns run by the RSPB for example. See also List of Scheduled prehistoric Monuments in Carmarthenshire List of Scheduled prehistoric Monuments in Powys (Brecknockshire) References External links Paper reporting Fan Foel excavations in 2002-4 Black Mountain (hill) Mountains and hills of Powys Mountains and hills of Carmarthenshire Hewitts of Wales Marilyns of Wales Nuttalls Brecknockshire