You could be a long time asking swallows. And far more then just Africa or European. There are 75 different types of swallows worldwide. Only eight of the seventy-five species can be found in the United States and Canada, which live in the northern hemisphere and migrate south for the winter.
African River Martin
Andean Swallow
Angola Swallow
Asian House Martin
Bahama Swallow
Banded Martin
Bank Swallow
Barn Swallow
Black-and-rufous Swallow
Black-capped Swallow
Black-collared Swallow
Black Rough-winged Swallow (Black Saw-wing)
Blue-and-white Swallow
Blue Swallow
Brown-bellied Swallow
Brown-chested Martin
Brown-throated Sand Martin
Caribbean Martin
Cave Swallow
Chestnut-collared Swallow
Chilean Swallow
Cliff Swallow
Congo Sand Martin
Crag Martin
Dusky Crag Martin
Ethiopian Swallow
Fairy Martin
Fanti Rough-winged Swallow
Forest Swallow
Galapagos Martin
Golden Swallow
Gray-breasted Martin
Greater Striped Swallow
Grey-rumped Swallow
House Martin
Lesser Striped Swallow
Mangrove Swallow
Nepal House Martin
Mosque Swallow
Mountain Rough-winged Swallow
Northern Rough-winged Swallow
Pacific Swallow (Hill Swallow)
Pale-footed Swallow
Pearl-breasted Swallow
Peruvian Martin
Pied-winged Swallow
Preuss's Swallow
Purple Martin
Red-chested Swallow
Red-rumped Swallow
Red Sea Swallow
Red-throated Swallow
Rock Martin
Rufous-chested Swallow
Sand Martin
Sinaloa Martin
South African Swallow
Southern Martin
Southern Rough-winged Swallow
Square-tailed Sawwing
Streak-throated Swallow
Striated Swallow
Tawny-headed Swallow
Tree Swallow
Tree Martin
Tumbes Swallow
Violet-green Swallow
Welcome Swallow
White-backed Swallow
White-banded Swallow
White-eyed River Martin
White-headed Saw-wing
White-rumped Swallow
White-tailed Swallow
White-thighed Swallow
White-throated Blue Swallow
White-throated Swallow
White-winged Swallow
Wire-tailed Swallow