Welcome to the forum , teknoprep .
Interesting & ornate item .
Since you've mentioned that your item can be disassembled ; I'd say the first thing to do , when asscessing the value of your candleholder , would be to take the bird off of the assembly & then take it to a gold specialist/jeweler to have it weighed and purity of gold tested .... it's quick , it's easy & not too super-expensive .
If you do so , it will establish a minimum current value for the gold it contains .
Wish I could tell you all about your item , but I can't .
I think yours is one that is best valued in-person , but maybe someone here has seen one that is exacty the same !