Thank you for giving examples. Here's another one.
Q1.Can we use the sentence "They are one of the special kind of birds." to express that one of the kind?(Q2. Or have to use They are one of the kinds of birds?)
There are many kinds of birds, but the black-faced spoonbill is one of the kind of birds. (Q2. Or have to use one of the kinds of birds?) I mean how to express one of th
Another way of looking at "kind of bird" or "kinds of birds" is to recognize the prepositional phrase "of bird" or "of birds."
A preposition (in, on, into, over, under, etc.) links its object to another word in the sentence.
The object "bird" should agree in number with the word "kind." Likewise, if you use kinds of birds, the object birds should agree in number with the word ki
Kind(s) of is regularly used before singular and uncountable nouns: one kind of car/person/bread, many kinds of car/person/bread. Kinds of is also used before plural nouns in more informal English: these kinds of cars/people, though you can more formally say cars of this kind. Kind of with an indefinite article is possible in an informal style, though many