Do birds have the abilty to smell food

They have to

how else would they find food to eat? or smell there predators coming at them.

Yes. Some species has a greater sense of smell than others like the turkey vulture which has a keen sense of smell that helps them find food and nesting grounds.

I know crows do. I put some corn kernnels by a fence since the last time I planted corn they ate it all.
It rained and there they come out of nowhere. So I feel like they can.

There are so many different types of birds and all have varying degrees of senses of smell,,,,the kestrel for example hunts with special ultra violet vision allowing him to spot urine trails of its prey from high above whilst hovering, the nocturnal owls can hunt in blackout using only their ears usually off set at the sides of their facial discs. The vultures have the best sense of smell...because nature knows their prey is dead and wont move! Therefore needn't be hunted. Each animal has a design to best suit its needs in the wild...it always amazes me, like the burrowing owl...has not the fur on its legs like other owls...because it burrows...newfoundland.'s paws are webbed, because they swim! Nature is cool!

YES! I have a Crow, and he let,s me know what food he like,s and what he doesn,t

No, they cannot smell anything.

If the bird you're asking about is a carnivore or omnivore (eats strictly meat; or eats pretty much everything), a sense of smell is essential in order to find their meals. Turkey vultures are considered the most acute when it comes to sense of smell because rotting carcases are best when fresh.

If the bird is largely a seed eater, insect or plant (fruits, vegetables, flowers, buds) - then no, a sense of smell is not necessary and so is either non-existent or very weak.

Birds might appear to have a sense of smell when they find certain foods or show a preference for different ripeness, or methods of preparation; however, more likely in play is their utterly unbelievable memory, eyesight, beak and tongue.

One example is a psittacine (any hook billed parrot) that can, with a quick touch of their tongue against a piece of fruit or vegetable, immediately tell if it's edible or something they've had before or is something they should pass by.

The sense of taste with nearly all birds is very low. In a parrot there are perhaps 500 taste receptors; in a person, about 10,000! Certain water fowl have up to 400; a chicken has about 25 and pigeons maybe 60.

It's really mostly about sight and 'feel' by way of their tongues that most NON-meat eating birds judge the appropriateness of their next meal