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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Ussher, R.J. | 1899 | The rufous warbler, a bird new to Ireland | Journal | Ir. Nat. | Details... |
| Ussher, R.J. | 1899 | Green woodpecker in Ireland - a correction | Journal | Ir. Nat. | Details... |
| Ussher, R.J. | 1899 | Cormorants breeding in trees | Journal | Ir. Nat. | Details... |
| Ussher, R.J. | 1899 | Gannets on the Bull Rock | Journal | Ir. Nat. | Details... |
| Warren, R. | 1899 | Spring arrival of sandwich terns at Killala | Journal | Ir. Nat. | Details... |
| Warren, R. | 1899 | Bird records in Co. Tipperary | Journal | Ir. Nat. | Details... |
| Warren, R. | 1899 | White wagtails at Bartragh, Co. Mayo | Journal | Ir. Nat. | Details... |
| Warren, R. | 1899 | Bar-tailed godwits in the Moy Estuary | Journal | Ir. Nat. | Details... |
| Warren, R. | 1899 | Black scoter in the Moy Estuary | Journal | Ir. Nat. | Details... |
| Williams, E. | 1899 | Rose-coloured pastor in Donegal | Journal | Ir. Nat. | Details... |
| Williams, E. | 1899 | Wood sandpiper in Co. Waterford | Journal | Ir. Nat. | Details... |
| Williams, E. | 1899 | Montagu's harrier in Co. Wexford | Journal | Ir. Nat. | Details... |
| Williams, E. | 1899 | The occurrence of the sociable plover in Ireland | Journal | Ir. Nat. | Details... |
| Anderson, R.J. | 1900 | The crookedness in the sterna of certain breeds of domestic fowls | Journal | Ir. Nat. | Details... |
| Anon. | 1900 | Irish ornithology | Journal | Ir. Nat. | Details... |
| Anon. | 1900 | Birds of Ireland and Switzerland | Journal | Ir. Nat. | Details... |
| Anon. | 1900 | Irish birds | Journal | Ir. Nat. | Details... |
| Barrett-Hamilton, G.E.H. | 1900 | Notes on the influence of man and civilisation on certain birds | Journal | Ir. Nat. | Details... |
| Burton, J.G. | 1900 | Curious note of a cuckoo | Journal | Ir. Nat. | Details... |
| Campbell, D.C. | 1900 | Rough-legged buzzard near Londonderry | Journal | Ir. Nat. | Details... |
2846 references found.