[Marina B]

I might be wrong, but to me this sounds like an alarm call, they do this when they see predators. Are you sure he's not seeing the cat when he does this?

 

[Marina B]

If there's a window he can see thru, it might even be something he sees flying in the distance. They usually sit quite still when making that sound.

So no need to worry, he's just acting like a perfect normal bird.

 

[Marina B]

Will even be better for him to put the cage outside for some sunshine and fresh air. Birds also need Vit D that they get from direct sunshine and not through a window. Just be careful it's not too hot for him and that the cat won't be able to get to him again.

 

[Marina B]

I always thought my dove was a he, until "he" laid eggs a month ago. That's the only way to be sure. That happened when "he" was about a year old.

 

[Marina B]

And then she sat on the eggs only for a day. I handed her little twigs that she tucked in underneath her. It was so sweet actually. Then she must have thought this is too much doing on her own and just left the egg to continue with her daily routine.