This is the 3283rd most frequent Turkish word.
havada
"Havada" means "in the air" in English.
In this sentence, 'havada' means 'in the air', describing the place where the birds are flying.
Havada kuşlar süzülerek uçuyor.
Birds are gliding through the air.
Here, 'havada' is used metaphorically to indicate the atmosphere or environment containing the strange smell.
Havada garip bir koku var.
There is a strange smell in the air.
In this context, 'havada' conveys an abstract or metaphorical sense, referring to the ambiance or mood.