there's this metal whistle like thing called a bird call that's supposed to sound like a bird. Is it possible you heard one of those?
Also, it was heard while I was at a creek where there is barely people (except there is only a few people with me) and I didn't even see anyone with a whistle.
I think that it is safe to assume that the call was made by some kind of passerine. It is very common for all kinds of passerines to add novel and unfamiliar calls to their vocal range, including species that are not mockingbirds or mynas. Even if nobody provides a better answer for you, I think that the call was more likely to have been made by a common passerine than anything else.
I think that it is safe to assume that the call was made by some kind of passerine. It is very common for all kinds of passerines to add novel and unfamiliar calls to their vocal range, including species that are not mockingbirds or mynas. Even if nobody provides a better answer for you, I think that the call was more likely to have been made by a common passerine than anything else.
Yeah, that is very obvious. It clearly is a perching song bird.