Yes, they do fight.
No, insects.
woodpecker
Yes, house martin birds do eat insects, infact a wide variety.
No..... Hummingbirds do not eat seeds, but they eat insects.
yes some birds do.
Beatles, worms, and a lot more, grasshoppers....
Birds such as Robins tend to eat worms and other burrowing insects. Flycatchers, swallows, and nightjars eat flying insects. It depends a lot on the type of bird.
yes they eat insects and wormsMost birds of any size will eat insects.
Some big species of spiders, especially of family Theraphosidae but also others like genus Nephila (of family Nephilidae), are said to eat birds.
Birds such as Robins tend to eat worms and other burrowing insects. Flycatchers, swallows, and nightjars eat flying insects. It depends a lot on the type of bird.
insects
Birds in the rain forest eat worms, insects and Spiders. Rain forest birds also eat berries and nuts, which are plentiful in a healthy rain forest.