The plural for birch is birches.
The plural of birch is "birches."
Example sentence - We identified the tree as a birch.
If you mean the species of tree, it is not a proper noun. However, if you were to name someone or something "Birch" - it is a proper noun.
No, because there are not 100 plural pronouns.The plural pronouns are:weusyou (can be singular or plural)theythemthesethoseouroursyour (can be singular or plural)yours (can be singular or plural)theirtheirsourselvesyourselvesthemselvesbothfewfewermanyothersseveralall (can be singular or plural)any (can be singular or plural)more (can be singular or plural)most (can be singular or plural)none (can be singular or plural)some (can be singular or plural)such (can be singular or plural)
The plural for birch is birches.
The plural of birch is "birches."
The Algonquin Invented Birch bark canoes. (The plural of Algonquin is spelled the same way as the singular)
Birch bark is not a living organism, however the birch tree, where birch bark comes from, is.
Claes Birch has written: 'Claes Birch'
Birch is much harder.
hard
The family name of birch is Betula .There are a number of birch native to The USA the best is probably Betula papyrifera the paper birch or canoe birch.
Andreas Birch Eriksen goes by Birch.
Bronze Birch Borers live mostly in Birch trees. But they especially live in Paper Birch trees.
Silver Birch
Thora Birch