From BWP
Winters up to northern edge of Sahel zone in West Africa, as far west as south-west Mauritania and northern Sénégal. Common in Mali between 13½° and 17°N and the commonest Oenanthe there north of 16°N (Lamarche 1981; see also Bates 1933–4). Winter distribution in central West Africa may be discontinuous (Moreau 1972); though regular in Chad, rare west of 19°E (Newby 1980). Winters in some areas of Egypt (Goodman and Ames 1983) and common in Sudan (Cave and Macdonald 1955); abundant in Ethiopia (Ash 1980), including Eritrea (Smith 1957), and in Somalia (Ash and Miskell 1983). Occurs regularly in north-east Zaïre (Lippens and Wille 1976; Curry-Lindahl 1981). Common in Kenya, eastern Uganda, and northern Tanzania, but very occasional in southern and western Uganda; few records south of 4°S in Tanzania (Britton 1980). 3 records in northern Zambia (Aspinwall 1977). Generally rather common through Arabia (e.g. Jennings 1981a). Recorded mid-January at Azraq, Jordan (Conder 1981), and in December and early January in Syria (Macfarlane 1978). Widely distributed winter visitor in Mesopotamia, Iraq (Allouse 1953); uncommon in lowland Iran (Cornwallis 1975). In some years, a few (mainly ♂♂) winter in southern Turkmeniya (USSR) at c.*40°N (Bel'skaya 1965a; Panow 1974), though Turkmeniyan population wholly migratory according to Ivanitski (Ivanitski 1981c); for earlier detailed discussion, see Rustamov 1954. Fairly common in Pakistan and north-west India in winter (Ali and Ripley 1973b). Winters up to northern edge of Sahel zone in West Africa, as far west as south-west Mauritania and northern Sénégal. Common in Mali between 13½° and 17°N and the commonest Oenanthe there north of 16°N (Lamarche 1981; see also Bates 1933–4). Winter distribution in central West Africa may be discontinuous (Moreau 1972); though regular in Chad, rare west of 19°E (Newby 1980). Winters in some areas of Egypt (Goodman and Ames 1983) and common in Sudan (Cave and Macdonald 1955); abundant in Ethiopia (Ash 1980), including Eritrea (Smith 1957), and in Somalia (Ash and Miskell 1983). Occurs regularly in north-east Zaïre (Lippens and Wille 1976; Curry-Lindahl 1981). Common in Kenya, eastern Uganda, and northern Tanzania, but very occasional in southern and western Uganda; few records south of 4°S in Tanzania (Britton 1980). 3 records in northern Zambia (Aspinwall 1977). Generally rather common through Arabia (e.g. Jennings 1981a). Recorded mid-January at Azraq, Jordan (Conder 1981), and in December and early January in Syria (Macfarlane 1978). Widely distributed winter visitor in Mesopotamia, Iraq (Allouse 1953); uncommon in lowland Iran (Cornwallis 1975). In some years, a few (mainly ♂♂) winter in southern Turkmeniya (USSR) at c.*40°N (Bel'skaya 1965a; Panow 1974), though Turkmeniyan population wholly migratory according to Ivanitski (Ivanitski 1981c); for earlier detailed discussion, see Rustamov 1954. Fairly common in Pakistan and north-west India in winter (Ali and Ripley 1973b).
Agree it looks shape wise very like an Issy - still need to check out the wings.