Humans have decoded the language of some birds:
For centuries, Native Americans have relied on so-called "bird language" to learn the whereabouts of people and other animals that would otherwise remain invisible to the human eye. "A lot of indigenous people have been using bird language to know where mega-predators are," says Pinar Ateş Sinopoulos-Lloyd, co-founder of Queer Nature, who leads courses on bird language. "They are able to decipher how birds communicate and warn each other in the forest."
Birds have their own languages. Thios was known recentlym however this was portrayed in the Quran 1400 years before it was discovered. The Quran says that birds have their own languages:
Quran 27:16 And Solomon succeeded David. He said, "O people, we were taught the language of birds, and we were given from everything. This is indeed a real blessing."
Solomon learned the language of birds.
The Quran also says that all animals glorify Allah but we cannot comprehend their languages:
Quran 17:44 " The seven heavens and the Earth and everyone in them glorify Him [Allah]; and there is nothing that doesn't glorify Him thankfully; but you (humans) do not understand their glorification. He is Compassionate, Merciful "