665 billion in a day not 665 billion Just imagine what it. Well the world population of Barn Swallows is estimated to be 190 million. Eurasian Sparrowhawk Animal Database Fandom Female sparrowhawks are usually 25 larger than males and can tackle birds that weigh up to 500 g including pigeons starlings thrushes and magpies. How many birds does a sparrowhawk eat per day . 150 pounds thats 18 pounds of chow roughly six extra-large pizzas. The issue with pigeons. Some people are worried that sparrowhawks eat too many small birds and cause their population to fall or even become extinct. FEED CONSUMPTION BIRD g MAX. Male sparrowhawks tend to prey on tits finches sparrows and buntings. Emotions can cloud the fact that the scientific research points to the contrary. The largest hawk like that of an adult Ferruginous hawk can weigh around 15 kg and so it can feed around 180 grams of bird meat each day. If they eat several then thats several garden birds down over a space ...