2003 Migrants
| Sand Martin | 14th March, Aughinish, Nr. Ballvaghan, Co. Clare (Michael Davis) |
| House Martin | 26th April, R. Corrib, Galway City (Chris Peppiatt) |
| Swallow | 2nd April, Clarinbridge (Gordon D'Arcy) |
| Swift | 4th May, Galway City (Chris Peppiatt & Tim Griffin) |
| Common Sandpiper | 21st April, Spiddal (per Irishbirding.com) |
| Whimbrel | 15th April, Barna Pier (Michael Davis) |
| Common Tern | 17th April, Nimmo's Pier, Galway City (Michael Davis & Chris Peppiatt) |
| Arctic Tern | 27th April, Traught (Aonghus O'Donaill, Neil Sharkey & Gerry O'Keefe) |
| Little Tern | 16th April, Inverin (Tim Griffin) |
| Black Tern | |
| Roseate Tern | |
| Willow Warbler | 25th March, Dyke Road, Galway City (Chris Peppiatt) |
| Sedge Warbler | 25th March, Dyke Road, Galway City (Chris Peppiatt) |
| Whitethroat | 1st May, Nr. Milltown, Tuam (Chris Benson) |
| Grasshopper Warbler | 17th April, Milltown, Nr. Tuam (Chris Benson) |
| Garden Warbler | |
| Corncrake | 11th May, Mweenish Island, Connemara (Seamus Collins) |
| Spotted Crake | |
| Quail | |
| Cuckoo | 14th April, Poll na Clocha (Pádraig Keirns) |
| Turtle Dove | |
| Nightjar | |
| Wheatear | 14th March, Inis Mór, Aran Islands (Anna Hahtola) |
| Ring Ouzel | |
| Spotted Flycatcher | 9th May, Rostaff, Co. Mayo (Roger Taylor) |
| Pied Flycatcher | |
| Garganey | |
| Manx Shearwater | 20th April, Inverin (Tim Griffin) |
| Arctic Skua | 27th April, Traught (Ian Brophy, Enda McLoughlin & Chris Peppiatt) |
| Great Skua | |
| Pomarine Skua | 10th May, Silver Strand (Aonghus O'Donaill) |