This is the 5651st most frequent Spanish word.
pájaros
"Birds."
Here, 'pájaros' is used simply in its nominative form, referring to birds, as the subject of the sentence.
Los pájaros cantan al amanecer.
The birds sing at dawn.
In this sentence, 'pájaro' is part of a fixed idiomatic expression, illustrating its cultural and metaphorical usage.
Hay un refrán que dice 'más vale pájaro en mano que ciento volando'.
There is a saying that goes 'a bird in the hand is worth two in the bush'.
In this example, 'pájaros' is the plural form used as the indirect object in the sentence whose action is directed towards them.