My baby bird fell from nest, mom abandoned. What should I feed it?

You can definitely try to feed it, you will need to buy wet canned cat food such as Recovery or A/D (from your local vet) as well as a syringe, you will need to feed it every couple hours during the day (no need to feed during the night).

Hello, the little bird likely fell out of his nest. If it hasn't been too long, you can take it back to where you got him to see if his nest and mother is still there, which would be best case scenario. Otherwise, it may take him some time to learn to fly on his own and you'll have to wait until his flight feathers grow fully. In the interim, you may continue to feed him baby food, or you may start to offer seeds, fruits, and veggies. Hope this helps and best of luck.

Their diet in the wild is mostly insects and berries, so purchasing some live crickets from a local pet store, or some berries from your store and offering them may help get them used to what they would forage for in the wild as they get weaned off the kitten food (and can be fun to teach baby birds how to catch food with live insects.) If there isn't a wildlife rehab nearby (India does have several), you can also see if there is a vet or group in your area that does wildlife rescue that may be better equipped for caring for the birds and releasing them back into the wild once they are old enough.

Baby birds can be very challenging to rehab without specific training. If you have an opportunity to take it to a wildlife rehab facility or expert, do so. If not, you can try worms as they will have more protein than rice and it might perk up with this diet. Good luck!

It looks like it may indeed be of the Warbler species. These birds typically eat insects, so small crickets or mealworms would be recommended. Ideally, you should contact a local wildlife rehabilitator for assistance. A rehabber will have the knowledge and experience to give the bird the best chance at eventual release.

Unfortunately, there isn't much you can do at home if the baby is severely injured or you don't have food for it. Trying to see if a local pet store or big box store that carries pet supplies is open may help you find syringes and baby bird food you need, otherwise. In a pinch, adult bird food can be ground down into a mash and then mixed with water and given via a syringe until you can get actual baby bird food. Keeping the babies warm and keeping any wounds clean and dry can help, however if there are severe wounds or the injuries are bad enough the babies can't function properly, seeking out the care of a vet in person ASAP is best (Many are open still for medical emergencies such as this).

If this is a wild bird the best option would be to get it to a wildlife rehabilitator asap. If a pet species you need to know what species in order to feed approriately. You need a hand rearing formula suited to that species. Keep in a "nest" with supplemental heat and humidity as it cannot regulate body temperature yet. Relative humidity greater than 50% is required initially. Hatchlings (no feathers) should be maintained at 95° - 97°F (35° - 36°C). An incubator is usually recommended for hatchlings. The yolk sac should provide nutrition the first 12 or so hours but but it will then need to be fed every 2 hours around the clock Here is some basic info https://vcahospitals.com/know-your-pet/hand-feeding-baby-birds