As owls are vertebrates - yes they have a back bone / spineYes, and its cervical vertebrae is long and flexible.
Herons are birds.
No there is more with backbones
Herons eat fish.
Babies that come from blue herons
Crocodiles and alligators eat herons.
James Hancock has written: 'The herons handbook' -- subject(s): Ardeidae, Herons 'Herons of North America' -- subject(s): Habitat, Herons
it has 2 backbones
No backbones
Pigs do have backbones.
Babies that come from blue herons
Yes Bears eat herons.