---

• n  Eurasian sparrow smaller than the house sparrow
• n  finch common in winter in the northern U.S.

• Passer montanus
• Spizella arborea

News & Articles

---

• Egg dumping -- and rearing
  Many birds have reason to worry that the eggs in their nest might not be their own: Birds often deposit eggs into other nests and it is not easy for parents to tell their eggs from others. Researchers have discovered that tree sparrows can recognize eggs deposited by other tree sparrows but do not always reject them.
  Dec. 11, 2013 - Science Daily