so i just got this canon r7 camera because my brother told me it was the best one for taking pictures of birds but honestly i feel like i have no idea what i am doing and i am super overwhelmed right now. it came with a small lens but when i went out to the park yesterday to try and get a picture of this hawk sitting on a branch it just looked like a little dot in the middle of the screen... i tried zooming in with my fingers on the screen like an iphone but that didnt do anything lol. i feel really dumb asking this but what do i actually need to buy so i can see the birds close up??

i been looking online and there are so many numbers like 100-400 or 100-500 and some say rf and some say ef and i dont even know what that means or if they even fit my camera. i dont want to spend a fortune because the camera already cost me a lot of money and my wife is already kinda annoyed at me for buying it. i think i can spend maybe 800 or 1000 dollars at most? maybe a tiny bit more if i eat ramen for a month and it really makes a huge difference but i really dont want to mess this up and buy something that doesnt work.

here is what i am looking for i guess:

• something that lets me see birds from far away
• i live in oregon so it gets cloudy a lot i dont know if that matters for lenses
• it needs to be not too heavy because i have bad wrists from typing all day at work
• something that is easy for a total beginner who doesnt know all the settings yet

is there like one lens that everyone uses? i saw one called a 600mm prime but it looks like a giant white bazooka and i dont think i can carry that around the woods. i just want to be able to see the feathers and the eyes without the bird being a tiny speck. sorry if these are really basic questions i just really want to take one good photo of a bird before i give up on this whole hobby...