December January. The star of the heavens at this time of the year is the vulture. Known as "Abanto" in much of the province of Soria, it is on clear days of December and January its annual estrus, where couples, faithful throughout his life, renew those ties of commitment and we fly unison, uncouth repair their nests or copulate with energy in rock faces.

At sunset, and with a little luck, we can hear the songs of territorial Eagle owls, species that has had a significant increase in their populations.

March. Althought the vultures are the greatest occupants, in every sense,- on the skies of the region, over March, they appear in it their African relatives, the Egyptian vulture. Three-four couples are living in these rock faces, doing something fairly easy observation, even, when it is a cultural visit to the site of Tiermes.

Right there we can see from this month, the arrival of the other species to make the rocky crags home. First Crag martins, progressive and temporary disappearances so if the rains and cold make their appearance for several days. At the end of the month, will come the Blue rock thrush, males, they are claiming their songs through the possessions of other years. This occupation is relatively recent. Ya, in these dates, the Ravens recompose walk in his usual busy nest. And will the little nest Peregrine falcons, although these are very rare here.

April. One of the species that have disappeared from this area are the Western jackdaw. They must be once very common, raising in all cut from this area and many nearby. Today we see a couples-and also increasingly- from Red-billed chough, with Rock sparrow and Spotless starling. Towards the end of the month will come the Rufous-tailed rock thrush, spectacular bird in both its colorful and zeal flights carried out and end up with multicolored parachute descents.

Few years ago, new tenants have sought shelter in the "caves" of the cliffs: they are the Red-rumped swallows. The first nests were here early this century, since then, they have been established on a regular basis.

May. Is a key month for, along the same, all they shall walk and entertained with raising, one way or another, starting in late and more birds and chickens grown in cases of vultures and hawks. It is well to recall the warning not to go near the nests of these species -well, no in general, periods because they are very sensitive and there is no reason to allow us to disturb.

The Black redstart perhaps the most abundant passerine in these chaotic media rocks near the Northern wheatear, who prefers accumulations of stones, buildings, etc.

June. The most boisterous in the rock faces, in the hedgerows, in the woods. The first half and will fledglings of many species and still not tighten much heat. Vultures and Egyptian vulture still they have chicks in the nest until July and August respectively but other species are at key moments in their breeding.

And around, many other birds, we guarantee a while rather than entertaining. Red-backed shrikes, Hoopoes, European bee-eaters, European green woodpeckers, Golden orioles…