Why do Masked Lapwings cross the creek?

It is puzzling why this Masked Lapwing family cross the creek so often. Each crossing involves considerable effort and risk, firstly to make sure that the route is secure, then to encourage the young to make the move.

This Masked Lapwing family has three chicks having lost the fourth the previous day. The parents crisscrossed the creek some dozen times before allowing the chicks to cross, check for danger on each side. Eels, foxes, lizards, rats and birds of prey are some of the challenges of Lapwing child rearing

Before proceeding with the crossing, this lizard, sitting on a garden ornament, was sent on its way.

A safe crossing this time for all three chicks.