The Birds were attacking because they were offended by Tippi wearing the same $!?@ everyday

That goddam green outfit, every day. Hitchcock cared to include a scene where she says all she has was a paper bag with her pyjamas and her not showering at Mitches, she jumped straight out of bed and applied make up while still in her pyjamas.

Then she wore the same junk, underwear everything, I don't even think she bothered showering or washing her hair at all. Smoking like a chimney all day, blowing smoke in the kids face whiole playing the piano.

As the days went by and the more she wore it, the more birds appeared and more frequent the attacks became the dirtier she became. I think they were just after a big tuna fish up her skirt. The old lady in the diner was right, they did come because of her.

It's funny how a high society gal, fashion-conscious and all. That she would not be itching to find a shop in town or a local town where she could quickly zoom off and buy some basic stuff, or that anybody offered her something after the 4th day of seeing her wearing it.

By the end when the birds attacked her in the room they were trying to rip the jacket off her.

It was a nice jacket at the start. By day 4 no showers, same dirty smoky clothes and same underwear.