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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Smiddy, P. & Sleeman, D.P. | 1998 | More records of fleas (Siphonaptera) from Irish mammals and birds | Journal | Ir. Nat. J. | Details... |
| Steele, D., Knight, G., Mellon, C. & RSPB | 1998 | Sperrin Mountains Breeding Bird Survey 1998 | Unpublished | | Details... |
| Cromack, D. (ed) | 1999 | UK Bird Sightings for August. Photograph by Tommy Ennis | Journal | Birdwatching | Details... |
| David Cromack (Editor) | 1999 | Issue: October 1999. UK Bird Sightings for August. Photograph by Tommy Ennis | Magazine article | | Details... |
| Garner, M. | 1999 | | Journal | Birding World | Details... |
| Hill, A. | 1999 | Lecture: 'The Irish whooper swan study': Graham McElwaine | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Petursson, G. & Olafson, E. | 1999 | | Journal | Birding World | Details... |
| Petursson, G. & Olafson, E. | 1999 | | Journal | Birding World | Details... |
| Pierce, S. | 1999 | | Journal | Birding World | Details... |
| Scott, D. | 1999 | Northern Ireland Bird Report 1997 | Report | | Details... |
| Thomlinson, P. | 1999 | Bird observatory, Light House Island, Copeland Islands, Co. Down: Neville McKee | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Thomlinson, P. | 1999 | Binevenagh, Co. Londonderry: David Riley | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Thomlinson, P. | 1999 | Lough Beg RSPB Reserve Sunday 11 October: Seamus Burns | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Willmott, J. | 1999 | | Journal | Birding World | Details... |
| Day, G. | 2000 | Excursion: RSPB Belfast Harbour Reserve | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Day, G. | 2000 | Excursion: Bird-song at Belvoir Forest Park, Belfast | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Day, G. | 2000 | Excursion: Birds and plants of Rathlin Island, Co. Antrim | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Gantlett, S. | 2000 | Photograph of juvenile by A. McGeehan | Journal | Birding World | Details... |
| Mitchell, D. | 2000 | British Bird Report for June 2000 | Journal | Birdwatch | Details... |
| Kelly, D. | 2001 | Review: 'Collins bird guide' by K. Mullarney, L. Svensson, D. Zetterstrom, P.J. Grant | Journal | Ir. Nat. J. | Details... |
2846 references found.