What sort of bird is chirping outside my window at this hour of night?

[conuly]

No, seriously, any ideas?

Comments

[conuly]

A cross between... a bat... and a seagull?

WTF?

[lady-angelina.livejournal.com]

Yeah, I know, right? XD; It's hard to explain, but the tone sounds screechy like a bat, but the tremolo (or ululation, for lack of a better word) sounds more like that of a seagull than a bat. It could well just be a bat, though.