The Hummingbird Hawk-moth is a large, day-flying moth which hovers like a hummingbird as it uses its long "proboscis" (tongue) to drink nectar from flowers.
It is quite plain from above when at rest and well-camouflaged but it has orange under-wings briefly visible when hovering in flight.
UK flight time: Summer (mainly migrant)
Hummingbird Hawk-moth at rest
The photos of Hummingbird Hawk-moths in the row immediately above and below are in Kazakhstan, taken by Alexandra Makhnina.