More info: Common garden birds in Madrid include the House Sparrow, Blackbird, Eurasian Blue Tit, Barn Swallow, and Eurasian Collared Dove, which are frequently seen in urban parks and residential areas.
Around Madrid, you are most likely to see the House Sparrow (Gorrión común), but also the Spanish Sparrow (Gorrión moruno) and the Eurasian Tree Sparrow (Gorrión molinero) are present. To differentiate them, the male House Sparrow has grey tones, while the male Spanish Sparrow has a chestnut crown and heavily streaked black underparts. The Eurasian Tree Sparrow has a dark ear patch and a brown crown.