BiRDie in our house ...

A cute little yellowish green bird flew into my house this morning. It stood at the window grill for about 5 mins before flying off. Opon its arrival, there are 2 birds of its kind that followed it, but they din come any nearer for me to take the shots. Here's the video of the cute bird. Is the bird trying to "convey" something to me.....?!?!?!