Children (18 direct children, 35 direct and indirect children):
Streak-throated swallow
Petrochelidon fluvicola
Cave swallow
(tree size 6)
Petrochelidon fulva
American cliff swallow
(tree size 5)
Cliff swallow
Fairy martin
Petrochelidon ariel
Chestnut-collared swallow
(tree size 2)
Petrochelidon rufocollaris
South african cliff swallow
Petrochelidon spilodera
Tree martin
(tree size 4)
Petrochelidon nigricans
Red-throated cliff swallow
Petrochelidon rufigula
Preuss's cliff swallow
Petrochelidon preussi
Petrochelidon perdita
Red sea cliff swallow
Petrochelidon fuliginosa
Forest swallow
Petrochelidon tibialis
Petrochelidon murina
Petrochelidon sp.
Petrochelidon littorea
Petrochelidon swainsoni
Petrochelidon timoriensis
Petrochelidon meyeni