"American Gods.

The mythos of urban children:

To homeless children sleeping on the street, neon is as comforting as a night-light. Angels love colored light too. After nightfall in downtown Miami, they nibble on the NationsBank building -- always drenched in a green, pink, or golden glow. "They eat light so they can fly," eight-year-old Andre tells the children sitting on the patio of the Salvation Army's emergency shelter on NW 38th Street. Andre explains that the angels hide in the building while they study battle maps. "There's a lot of killing going on in Miami," he says. "You want to fight, want to learn how to live, you got to learn the secret stories." The small group listens intently to these tales told by homeless children in shelters.

Amazing, if true, but color skeptical. Margaret Meade ran into a similar problem with natives who expanded on the stories she seemed to want to hear from them. (See this article. ("He concluded that late in Mead’s fieldwork two Samoan girls, alerted by Mead’s persistent questions on the matter, played a mischievous trick by telling her what she wanted to hear."))

Anyhow, there's probably a dynamite urban fantasy buried in the article.