February - March.
Very good for the start of bird of prey migration including Black Kite, Short-toed & Booted Eagles, Egyptian Vulture, Sparrowhawk, Hoopoe etc.  Cory’s Shearwaters, great skuas, and Nothern gannets in the straits.  Great month for photographing wintering species such as Common crane, Black-winged kite, Spanish imperial eagle and Bonelli's eagle.

March – April.
During late March to April there is a good variety of passage raptors including peak passage of Black Kite, Egyptian Vulture, Short-toed Eagle, Marsh and Montagu’s Harriers, Buzzard, Booted Eagle and Osprey.  Smaller spring migrants include Subalpine & Spectacled Warblers & Black-eared Wheatear arrive early March in great breeding plumage.

April – May.
Excellent for migrating passerines and large falls occur in the Strait area after bad weather.  Those wanting to observe the greatest variety of species should visit during mid-April to May.  At this time birds are still migrating north and most of the summer visitors have arrived to breed.  Among the interesting migrants these months include Montagu’s Harrier,  Scops Owl,  Red-necked Nightjar, Bee-eater,  Roller,  Hoopoe,  Short-toed Lark, Tawny Pipit, Rufous Bush Robin,  Northern & Black-eared Wheatears,  Rock Thrush,  Western Olivaceaous Warbler, Melodious Warbler,  Spectacled Warbler, Subalpine Warbler, Orphean Warbler, Willow & Bonelli’s Warblers,  Pied Flycatcher, Common Redstart, Woodchat Shrike, Ortolan Bunting and many others. 
See Spring tours 

June is good for Honey Buzzard and for other late bird of prey passage involving a lot of non-breeding individuals from species such as Griffon Vulture, Short-toed Eagle, Black Kite and ideal for observing all the summer breeding birds in their breeding plumage and particularly good for photography as a result long daylight hours, not too warm, and almost guaranteed great weather.

July – August.
July and August are very good seabird-watching months. There are large numbers of Balearic and Cory’s Shearwaters offshore and there is a large westward movement of thousands of Audouins’s Gull passing close to certain points, great for flight photography. Other seabirds likely at this time include Slender-billed Gull, Gull-billed Tern & Black Tern.  July to August is also the peak of the southward migration of the White Stork, Black Kite and Common Swift and can be particularly impressive at times.

August – October.
The last week of August and the first ten days of September are the best for large numbers and psecies of raptors on migration, especially Honey Buzzard, Black kite, Short-toed eagle, Booted EagleEgyptian Vulture, Montagu’s & Marsh Harrier, White and Black Storks and more. The main passerine activity in autumn is in late September to mid-November when large falls occur after bad weather. Finch migration during October and early November is spectacular.

November - February. 
The winter period is considered to be from November – February.  This is a great period  to observe up close wintering species such as Black-winged kite, Spanish imperial eagle, Bonelli's eagle, Common crane, and many others. The end of February is also an interesting time as summer migrants from the Africa arrive and the winter species are still present. 

In summary, the region is great at any time of the year, with cheaper flights during the late autumn / winter months

Species by month

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