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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Penney, S. | 1949 | Black-tailed godwits in Co. Armagh | Journal | Ir. Nat. J. | Details... |
| Penney, S. | 1951 | Ruff, Philomachus pugnax (L.) in Co. Down | Journal | Ir. Nat. J. | Details... |
| Penney, S. | 1952 | Snow bunting near the Belfast Docks | Journal | Ir. Nat. J. | Details... |
| Penney, S. | 1954 | Buff-breasted sandpiper in Co. Londonderry | Journal | Ir. Nat. J. | Details... |
| Pentland, G.H. | 1897 | Stock-dove at Drogheda | Journal | Ir. Nat. | Details... |
| Pentland, G.H. | 1910 | Abundance of great northern divers | Journal | Ir. Nat. | Details... |
| Pentland, G.H. | 1912 | Notes on the increase and decrease of some mammals, birds and insects in the county of Louth during the last fifty years | Journal | Ir. Nat. | Details... |
| Pentland, G.H. | 1913 | A blackbird's note | Journal | Ir. Nat. | Details... |
| Pentland, G.H. | 1915 | Notes on a decoy in the County of Louth | Journal | Ir. Nat. | Details... |
| Pentland, G.H. | 1917 | Swans and their nests | Journal | Ir. Nat. | Details... |
| Pentland, G.H. | 1919 | The jay in Co. Louth | Journal | Ir. Nat. | Details... |
| Perceval, P.D. | 1913 | Observations on the movements of woodcock | Journal | Ir. Nat. | Details... |
| Perrins, C.M. & Brooke, M. de L., | 1976 | Manx shearwaters in the Bay of Biscay | Journal | Bird Study | Details... |
| Perry, K. | 1997 | Grebe and waterfowl research on Lough Neagh | Ph.D. Thesis | | Details... |
| Perry, K. | 2004 | Book review: 'Irish birds' by D. Cabot | Journal | Ir. Nat. J. | Details... |
| Peters, J.V. | 1957 | Birds observed at Annagh and Brackagh Mosses, Co. Armagh | Journal | Ir. Nat. J. | Details... |
| Peters, J.V. | 1960 | The merlin in north-east Ireland, 1959 | Journal | Ir. Nat. J. | Details... |
| Peters, J.V. | 1960 | Occurrence of a hoopoe at Ballynahinch, Co. Down | Journal | Ir. Nat. J. | Details... |
| Pethybridge, G.H. | 1911 | Contents of pheasant's and wood-pigeon's crops | Journal | Ir. Nat. | Details... |
| Pettersson, M. | 1959 | The advent in Ireland of greenfinch despoliation of Daphne | Journal | Ir. Nat. J. | Details... |
2846 references found.