This is the 4789th most frequent German word.
ams
The German word "Ams" does not exist; perhaps you meant "Amsel," which means "blackbird" in English.
Here, 'Amseln' is the plural form of 'Amsel,' which means 'blackbird.' It is used as a noun referring to a type of bird in nature.
Ich sehe die Amseln im Park.
I see the blackbirds in the park.
In this sentence, 'Amsel' is singular and also used as a noun, referring to the bird and its song as natural phenomena.
Der Gesang der Amsel ist sehr melodisch.
The song of the blackbird is very melodic.
'Amseln' is plural here and used as an object within the phrase describing an activity involving the birds.