Could you explain the usage of "tane". How the meaning of the sentence changes if i leave out "tane"? Thank you!
It doesn't change. It is just a word that can be used after things that you can count and it optional. :) The meaning stays the same.
Very unusual. I speak Ukrainian, German, and Russian and cannot think of anything like this word in those languages.
Notice, all of those languages are Indo-European. Turkish is not. This is very mild compared to Japanese, Chinese and a few other languages where this is required and there are multiple versions. :)
You mean "tane" is a remnant of an older grammar that required it?
It probably is, but I am not sure :) Important to note though is that Turkish is definitely not related to Chinese and probably isn't related to Japanese :)
Tane means many and var means have
I wrote "there are fifty five birds in total". Would this be an acceptable translation?
Does using "tane" eliminate the need for birds to show plural (kuslar)?
I think not. The plural is forbidden when you use numbers, not like in English. IN Turkish, a sentence like "Iki (tane) kuslar var" is simply wrong. The word "tane" does not change this rule.