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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Parker, R.E. | 1967 | Araneus quadratus Clerck in Co. Down | Journal | Ir. Nat. J. | Details... |
| Parnell, J.A.N. & Simpson, D.A. | 1988 | Hybridization between Polygonum mite Schrank, P. minus Huds. and P. hydropiper L. in Northern Ireland with comments on their distinction | Journal | Watsonia | Details... |
| Partridge, C.E. | 1893 | Lepidoptera of Enniskillen | Journal | Ent. Monthly Mag. | Details... |
| Partridge, C.E. | 1894 | Lepidoptera of the districts around Lough Erne | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Partridge, C.E. | 1895 | Further captures of Lepidoptera at Enniskillen, Ireland | Journal | Ent. Monthly Mag. | Details... |
| Partridge, C.E. | 1895 | Supplementary notes on the Lepidoptera of Enniskillen | Journal | Ent. Monthly Mag. | Details... |
| Paterson, T.G.F. | 1936 | Convolvulus hawk-moth in Co. Armagh | Journal | Ir. Nat. J. | Details... |
| Paterson, T.G.F. | 1945 | Bittern in Co. Armagh | Journal | Ir. Nat. J. | Details... |
| Paterson, T.G.F. | 1958 | The hoopoe, Upupa epops, in Co. Armagh | Journal | Ir. Nat. J. | Details... |
| Patrickson, S. | 1833 | A descriptive list of the dykes appearing on the shore which skirts the Mourne Mountains, and numbered from Thomas' Mountain near Warren Point | Journal | J. Geol. Soc. Dubl. | Details... |
| Patten, C.J. | 1914 | Lapwings and redshanks at Maidens Light-house, Co. Antrim | Journal | Ir. Nat. | Details... |
| Patten, C.J. | 1914 | Missel thrushes, fieldfares and redwings at Maidens Light-house, Co. Antrim | Journal | Ir. Nat. | Details... |
| Patten, C.J. | 1915 | Redshanks on migration at Maidens Lighthouse | Journal | Ir. Nat. | Details... |
| Patten, C.J. | 1915 | Rock-pipit on migration at Maidens Lighthouse | Journal | Ir. Nat. | Details... |
| Patten, C.J. | 1915 | Greenland wheatears on migration at Maidens Lighthouse | Journal | Ir. Nat. | Details... |
| Patten, C.J. | 1915 | Pied flycatcher and lessor whitethroat on migration at Maidens Lighthouse | Journal | Ir. Nat. | Details... |
| Patten, C.J. | 1917 | Quail and wren on migration at Maidens Lighthouse | Journal | Ir. Nat. | Details... |
| Patten, C.J. | 1917 | Wood-warbler on migration obtained at Maidens Lighthouse, Co. Antrim | Journal | Ir. Nat. | Details... |
| Patterson, E.M. | 1941 | Caledonian and Tertiary dykes in County Down | Journal | Ir. Nat. J. | Details... |
| Patterson, E.M. | 1943 | Late-stage veins in the cone-sheet of Bloody Bridge, Mourne Mountains | Journal | Ir. Nat. J. | Details... |
3701 references found.