I mean… you don’t even NEED ONE pair. Despite the joy I get out of a close view, most of my IDs I get by ear, or general pattern and behavior from afar.I have some good advice, if you are a birder... You only need 1 pair of binoculars. Full stop. Whatever is light enough, enough magnification, reasonable quality.
You don't need 2 pairs.
But, I certainly prefer and ENJOY having (1) a small pocket bin for dog walks and unexpected roadside stops, I ENJOY having (2) a 7x42 that I can stick to my face and dwell in the scene for long views, and I ENJOY having (3) my NL 8x32 on dedicated birding outings to be sure I don’t miss any field marks. I also enjoy having (4,5) some wide angle porros that live on a mantel or shelf by a window where I watch hummingbirds and bluebirds at my feeder - once watched a red-shouldered hawk eating a snake while sitting on my couch!!
I agree with the position that you do not need more than one all-rounder for birding, but nothing wrong with it if you do.