There was a tutorial, but some updates ago it was removed from the game. Instead I did a little tutorial to help you.
Red (red) – small bird, when clicked he screams and push structures on his way. He isn’t in destroying things, but his pushing ability is effective against nearly all tall and tight structures. Best to use when the stage is easy and you don’t want to use stronger birds.
Chuck (yellow) – medium bird, when clicked he accelerates and starts moving straight to the moment he hits something. Difficult to master, but with good timing very effective. Best to use him against wood structures or weak points, baloons or anything too high for the other birds (AKA Baloon Pigs).
The Blues (blue) – very small birds, in slingshot there’s only one visible, when clicked they split into 3 identical birds. They can go through glass, and that’s the only thing they’re doing well. Use them only if you don’t want to lose stronger birds.
Bomb (black) – large bird, made to break stone, then destroying anything close by explosion. Actually, he’s best against anything because of it’s ability. Also, it’s only ability, which don’t need to be activated manually, because he explodes some seconds after hitting anything. Most valueable bird, don’t waste him.
Silver (grey) – medium bird, it’s her debut in the AB games. When clicked, she’s making a loop, then flying to the ground, making a little shockwave after landing. Most times her loop isn’t effective because most of the stages are vertical, but her ability can be used as hammer, when she crash into structure while doing loop. Without ability, she can destroy one stone block, which is somewhat useful. Use her when using any bird is risky.
Matilda (white) – large bird, when clicked, she drops an egg-shaped bomb, then goes a bit upward. While a bit underpowered than in former games, she’s good in destroying two structures at once. Again, she needs very good timing to work properly.
Terence (dark red) – very large bird and there’s nearly nothing to know about him. You only need these: he’s best at wrecking structures and pigs, lose his power against stone and baloons (yes, everyone knows it’s stupid) and he’s too valuable to waste him.
Also, if you want to know a bit against your enemies, take a look here:
https://www.angrybirdsnest.com/forums/topic/angry-birds-2-enemy-guide-explanations-and-strategies-updated-7172016/