In support of Hollaback!, an organization working to end street harassment, one woman walked for 10 hours through different areas of New York City and documented the catcalls she received.

The common argument against those who point out this kind of harassment is that it is not, in fact, harassment at all. When a man tells a woman on the street that she’s beautiful, for example, it is merely a compliment. But, as many women understand, this is not always the case. Often, catcalling can make women feel uncomfortable and even unsafe – and the men who do it often seem to feel entitled to a response. And, of course, some such comments are much less “friendly.”