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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Collinge, W.E. | 1942 | On a woodlouse new to Northern Ireland | Journal | Ir. Nat. J. | Details... |
| Common, R. | 1984 | Pollution risks in the upper Blackwater (Co. Tyrone) | Journal | Ir. Nat. J. | Details... |
| Common, R. | 1986 | The Glen Burn at Mt. Stewart (Co. Down) | Journal | Ir. Nat. J. | Details... |
| Common, R.H. | 1932 | Allium triquetum in Co. Antrim | Journal | Ir. Nat. J. | Details... |
| Connolly, A.P. | 1977 | The distribution and history in the British Isles of some alien species of Polygonum and Reynoutria | Journal | Watsonia | Details... |
| Conybeare, W. & Buckland, W. | 1816 | Descriptive notes referring to the outline of sections presented by a part of the coasts of Antrim and Derry | Journal | Trans. Geol. Soc. Lond. | Details... |
| Cooke, N.V. | 1950 | Waxwings in Co. Antrim | Journal | Ir. Nat. J. | Details... |
| Copeland Bird Observatory | 1977 | Report for 1977 | Report | | Details... |
| Corlett, J. | 1967 | Young plaice and other fish in Strangford Lough and neighbouring bays in August, 1963 and 1964 | Journal | Ir. Nat. J. | Details... |
| Corry, D.L. | 1928 | Fish mortality in a County Fermanagh lake | Journal | Ir. Nat. J. | Details... |
| Cotton, D.C.F. & Caffrey, J. | 2000 | Curly waterweed Lagarosiphon major (Ridley) Moss, in Ireland | Journal | Ir. Nat. J. | Details... |
| Countryside & Wildlife Branch, DoE (NI) | 1987 | Northern Irish protected plants | Unpublished | | Details... |
| Cousins, W.D. | 1929 | Nest of robin in Killybready P.E. School, Limavady | Journal | Ir. Nat. J. | Details... |
| Cowden, D.G. | 1989 | Survey of specialist biological groups in Northern Ireland. Report on Arachnida Spiders. Annex 5 | Book | | Details... |
| Cowden, D.G., Harding, P.T. & Eversham, B.C. | 1990 | Some records of invertebrates from Northern Ireland, including three spiders new to Ireland | Journal | Ir. Nat. J. | Details... |
| Craig, A. | 1995 | Excursion: The Newry Canal at Scarva | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Craig, D. | 1981 | Weather and mudslide activity in east county Antrim, Northern Ireland | Journal | Weather | Details... |
| Crashie, J. | 1940 | The Botanical Society of Northern Ireland | Journal | Ir. Nat. J. | Details... |
| Crawford, A.R. | 1929 | Chough breeding on Fair Head | Journal | Ir. Nat. J. | Details... |
| Crawford, A.R. | 1930 | Fulmar petrel breeding near Giant's Causeway | Journal | Ir. Nat. J. | Details... |
3701 references found.