Русско-английский словарь пословиц и поговорок
НА ПАДАЛЬ И СОБАКА БЕЖИТ
Men take advantage of someone else's bankruptcy, death, grave condition, etc. See Где мед, там и мухи (Г), Павшее дерево рубят на дрова (П)
Cf:Wheresoever the carcass is, there will eagles (ravens) be gathered (Br.). Where the carcass is, there the buzzards gather (there the ravens will collect together, there will the eagles be gathered) (Am.)