To get to the other side? After all, this is the second bird to try, albeit this one seems more determined. Of course, I believe "the bird" means something. Other 'acts of vandalism' such as paper-tearing may be connected. If you have bird feeders, some sites suggest placing them closer to windows. There are a few steps that you can take to reduce window attacks.
This isn't my favorite option because I like my view, but it may be a good fit for your situation. Stop Birds Hitting Windows Option #4 – Physical Barriers Outside the Window. It may be that the putty contains a mineral or other substance that is lacking in the birds natural diet, and it is trying to make up for the deficiency. Your house or cars windows act as mirrors to the birds. Some people have resorted to covering the entire outside of the window. Usually, however, the best course of action is to do nothing and wait. Birds attacking window frames may be able to hear or see insects in the wood if the wood is old.
"Why are birds repeatedly hurling themselves against my office window?" Seriously, is it possible there is something visible through the window that the bird is potentially trying to get to? But when a bird strikes a window, what can be done to help it recover?
When they are close enough to see their own reflection, they interpret this as an intruder and begin attacking or pecking at the window to chase the intruder away. The bird isn't going to care of there is a decal as long as that other bird (in her/his mind) is still in its territory.
The purpose of the decals is to keep birds from flying into the window by mistake. Why Birds Hit Windows . You can also try hanging windchimes or small branches in front of your windows so birds are less likely to fly into them. IANAO (I am not an ornithologist), and my name doesn't reflect ANY expertise in the area. They may also have a liking for the linseed in the putty. Not to be confused with window collisions, birds sometimes repeatedly and aggressively fly at reflective surfaces such as windows and mirrors. But sometimes, the bird just hits the window and you should not concern yourself with superstitious if it flys off. When birds see another of the same species in its breeding or feeding territory, it instinctively attacks the other bird. Every birder has heard the resounding thud of a bird hitting a window, and even with the best preventative measures to help birds see and avoid the glass, impacts are inevitable. To prevent birds from flying into your windows, try to keep the curtains and blinds drawn as much as possible to make your windows more visible. Lattice, mesh, screens – anything that will block your view will block the birds, too. The bluebird isn't flying into the window; it is attacking a reflection of itself.
Birds hitting your window could mean that you are going to encounter an obstacle in your life if the bird died.