City birds are using cigarette butts in their nests to reduce parasites, but the toxic tradeoff may come with hidden risks ...

Research from Poland adds to evidence from Latin American countries that compounds in used cigarette butts ward off parasites in bird nests.

DEAR JOAN: I have a house flinch that insists on building a nest on the wires — telephone, cable, electric — above my bedroom window. It creates a mess, but I could deal this with it except that last ...

Research shows some birds use cigarette butts in nests to reduce parasites, though potential health risks remain.

Looking for birding opportunities close to home? Birds with “house” built into their names are, not surprisingly, common urban residents. Three such birds found in Minnesota include the house wren, ...