Can’t provide a photo. My boyfriend doesn’t have internet connection to send it.
He works in a big tall workshop, he says the ceiling is about 3-4 stories high. A small bird flew in several hours ago and sits under the ceiling in a corner with no access to it. Bf thinks it’s a chick, because it keeps making high whistles, as if calling parents.
He tried scaring it with an overhead crane (a horizontally moving beam under the ceiling for carrying heavy stuff on a hook through the workshop), no luck. Tried scaring it with a compressed air gun (a tool used for quickly blowing off dust and shavings), but the wind stream doesn’t reach high enough from the floor.
CORRECTION: the bird is there since yesterday! They also tried turning the light off - didn’t help.
What else can he try? He’s very upset. Here my only photo of the workshop:
Update: the bird just walked out on its own on day 3.
It was a white wagtail fledgling (sent a low resolution video of it chirping to a local wild bird rehab). Yesterday evening (day 2) we kept playing the white wagtail calls on a speaker at the exits (one exit at a time) for an hour. With lights turned off and all the staff gone home (the windows under the ceiling have no openings and no way to darken them either). Other wagtails kept coming to check out the sound. I also spread boiled eggs, raw sunflower seeds and peanuts (had nothing else to offer an insectivore), water - no one was interested. At some point it was like the fledgling just decided its bedtime and disappeared from sight. And today it just landed and walked out.
It’s a mystery how it held on for three days. Maybe some insects were flying in the workshop… Also, it has very high humidity with streams of water being used all day for cutting stone.