(As usual when it comes to Ireland I am being a bit pathetic with pinning the stories to locations. But I hope the locations still exist).
.. Avowedly malignant ceremonies have been performed at two, if not three, places in East Clare. At Carnelly, near Clare Castle, at an unknown period remote even in 1840, "a black cock, without a white feather," was offered to the Devil on the so-called "Druid's Altar," two fallen pillars near an earthen ring beside the avenue, --to avenge the sacrificer on an enemy, but in this case it brought an equivalent misfortune on the sacrificer himself.
The Duchess de Rovigo, an heiress of the last Stamer of Carnelly, used the story, combined with irrelevant family legends and pseudo-archaeology, in a poem dated 1839, but I obtained it, as given above, from a more reliable source, her mother, in 1875 and 1882, as well as from my brothers and sisters, who heard it in "the forties".
When I was at the dolmen near the house at Maryfort in 1869, an old servant, Mrs. Eliza Ega (nee Armstrong), said to me, -- "Don't play at that bad place where the dhrudes (druids), glory be to God! offered black cocks to the Devil!"
A Folklore Survey of County Clare (Continued)
Thos. J. Westropp
Folklore, Vol. 22, No. 1. (Mar. 31, 1911), pp. 49-60.
A Survey of Monuments of Archaeological and Historical Interest in the Barony of Bunratty Lower, Co. Clare by William Gerrard Ryan
This part of the thesis discusses the various types of monuments of archaeological and historical interest that were noted in the Barony of Bunratty Lower, Co. Clare. Each type of site is examined in turn, under the headings: distribution, features, dating and related sites in Ireland.
I have to agree with Ryaner below about this being one of the most impressive sites in the Burren.
It is similar to Dun Aeognus on the Aran Islands in that it uses a cliff face as a natural defence to the north.
The third [fort in the area] is much defaced but of greater note. It is called Doonmeeve on the maps, but Doonmihil and Dooneeva, locally. There are two segments of curved fosses coming out at a slope near the shore; they are cut through drift, and when a block of shale was met with it was neatly cut to the slope of the bank. the inner is dry, but a water runnel courses down the outer one. They are 6' to 10' deep and wide at the bottom in parts, the inner 28', and the outer 20' wide at the top. The bank between these is 22' wide at the top. It probably enclosed a space on the cliffs, and could hardly be a promontory fort whose promontory was washed away by the unresting sea. Bronze implements have been found on the shore at the foot of the cliff which bounds its enclosure.
A very curious tradition as told us in the neighbourhood. A certain man, in not very remote past years, began to dig up the space inside its trenches, before he had been long at work he fell down and lay to all appearance dead. News was brought at once to his wife a reputed "wise woman," who was evidently equal to the emergency. She rushed to the nearest fairy spot, did magic, and ran to Dooneva to her apparently lifeless husband. She then addressed herself to the unseen inhabitants of the fort and imperiously ordered them to bring back her husband at once. Rapidly as the deceased brother of the unvirtuous de Birchington, of Ingoldsby, the insensible man sat up and recovered complete strength, while a stick was carried off in his stead. After all the story in its facts, apart from their deductions, may very well have happened, and even the charms may have been done in as good faith as many others worked to our personal knowledge.