The female builds the cup-like nest with mud as its foundation and lines it with grasses, twigs and other plant material before laying bright blue robin eggs. “I’ve watched American robins ...

To investigate, the team placed pairs of quail eggs in 140 nesting sites around ... the remaining 80 were inactive open-cup American robin nests. Snake skins—provided from a local snake breeder ...

For this experiment, the researchers placed two quail eggs inside more than 60 nest boxes and 80 inactive American robin nests placed around the Monkey Run Natural Area in Ithaca to simulate ...