Are there really still people around who refer to women as "birds"? I thought 1975 had finished some time ago.
I think most women like a man to be a gentleman and only the most hard-nosed uber-feminist will view it as patronising. Most women can tell the difference between polite and patronising, or between chivalry and chauvinism. I shall continue holding doors open for women, letting them walk on the inside of the pavement, and treating them with respect. If a woman should complain about this, I shall politely point out that my actions are out of courtesy, not out of some belief that women are helpless or inferior in any way, nor because I'm after her body. If she still moans, I shall reassure her that the next time I see her, I shall be sure to slam the door in her face or let her risk getting run over, just as she apparently wants.
Most of the time though, I get a thank you (and maybe even a smile!), including from younger women.