Table 1. Demographic data of the seabird species admitted to the Tafira Wildlife Rehabilitation Center (Gran Canaria Island, Spain) (2003–2013).
| Species | Number of seabirds (%) | Sex | Age | |||
|---|---|---|---|---|---|---|
| M/Fa | Unknown | <1 year | >1 year | Unknown | ||
| Order Procellariiformes | 915 (46.78) | 35/55 | 825 | 207 | 317 | 391 |
| Family Procellariidae | ||||||
| Cory’s Shearwater (Calonectris diomedea borealis) | 393 (20.09) | 34/54 | 305 | 38 | 193 | 162 |
| Bulwer’s Petrel (Bulweria bulwerii) | 185 (9.45) | 0/1 | 184 | 98 | 33 | 54 |
| Barolo Shearwater (Puffinus baroli) | 10 (0.51) | - | 10 | 6 | 1 | 3 |
| Manx Shearwater (Puffinus puffinus) | 11 (0.56) | - | 11 | 6 | 3 | 2 |
| Great Shearwater (Ardenna gravis) | 7 (0.35) | 1/0 | 6 | 4 | 1 | 2 |
| Northern Fulmar (Fulmarus glacialis) | 1 (0.05) | - | 1 | 0 | 0 | 1 |
| Family Hydrobatidae | ||||||
| Leach’s Storm-Petrel (Oceanodroma leucorhoa) | 128 (6.54) | - | 128 | 29 | 17 | 82 |
| Band-rumped Storm-Petrel (Oceanodroma castro) | 16 (0.81) | - | 16 | 4 | 3 | 9 |
| European Storm-Petrel (Hydrobates pelagicus pelagicus) | 6 (0.31) | - | 6 | 1 | 2 | 3 |
| White-faced Storm-Petrel (Pelagodroma marina hypoleuca) | 158 (8.07) | - | 158 | 21 | 64 | 73 |
| Order Suliformes | 53 (2.71) | 0/1 | 52 | 24 | 21 | 8 |
| Family Sulidae | ||||||
| Northern Gannet (Morus bassanus) | 52 (2.65) | 0/1 | 51 | 23 | 21 | 8 |
| Family Phalacrocoracidae | ||||||
| European Shag (Phalacrocorax aristotelis) | 1 (0.05) | - | 1 | 1 | 0 | 0 |
| Order Charadriiformes | 988 (50.51) | 13/19 | 956 | 194 | 181 | 613 |
| Family Laridae | ||||||
| Lesser Black-backed Gull (Larus fuscus) | 24 (1.22) | - | 24 | 7 | 11 | 6 |
| Yellow-legged Gull (Larus michahellis) | 910 (46.52) | 13/18 | 879 | 183 | 154 | 573 |
| Black-legged Kittiwake (Rissa tridactyla) | 7 (0.35) | 0/1 | 6 | 1 | 1 | 5 |
| Herring Gull (Larus argentatus) | 5 (0.25) | - | 5 | 0 | 2 | 3 |
| Black-headed Gull (Chroicocephalus ridibundus) | 10 (0.51) | - | 10 | 1 | 4 | 5 |
| Common Tern (Sterna hirundo hirundo) | 11 (0.56) | - | 11 | 1 | 2 | 8 |
| Sandwich Tern (Thalasseus sandvicensis) | 19 (0.97) | - | 19 | 1 | 7 | 11 |
| Black Tern (Chlidonias niger) | 1 (0.05) | - | 1 | 0 | 0 | 1 |
| Family Alcidae | ||||||
| Atlantic Puffin (Fratercula arctica) | 1 (0.05) | - | 1 | 0 | 0 | 1 |
| TOTAL | 1,956 | 48/75 | 1,833 | 425 | 519 | 1,012 |
aM/F: male/female ratio