O. Gy. Dely szerk.: Vertebrata Hungarica 20. (Budapest, 1981)

Horváth, L.: A singular Garrulus lanceolatus-like reversionary jay specimen 65-68. o.

VAURIE, C. (1959): The Birds of the Palearctic Fauna. - London 762 pp. VIGNE, G. T. (1831): Observations on the Collection of the Birds from the Himalayan Mountains with characters of new genera and species. - Proceed. Zool. Soc, 1: 7-170. WAUDEN, A. (1869): Remarks on Stolitzkas Ornithological Observations In the Sutley Valley. Ibis, 5: 208. WHISTLER, H. (1949): Popular Handbook of Indian Birds. - London, 560 pp. WITHER BY, H. F. als (1952): The Handbook of British Isles. - London, 2: 1-27. Author's address: Dr. L. HORVÁTH Zoological Department of the Hungarian Natural History Museum H-1088 Budapest Baross u. 13. Hungary