Home›Birds›Lifespan›38.800000Browse By38.800000FactsLifespanSourcesComments (0)Reader Challenges (0)FactsComparisonReproductive ModeWell-attestedOviparous (Egg-Laying) 1Lifespan18.000000Lifespan1 entry18.100000Lifespan1 entry18.200000Lifespan1 entry18.600000Lifespan1 entry18.800000Lifespan1 entry19.000000Lifespan1 entry19.200000Lifespan3 entries19.300000Lifespan1 entry20.000000Lifespan3 entries20.100000Lifespan1 entry20.200000Lifespan1 entry20.600000Lifespan1 entry20.800000Lifespan3 entries20.900000Lifespan1 entry21.000000Lifespan3 entries21.100000Lifespan2 entries21.300000Lifespan1 entry21.600000Lifespan1 entry21.700000Lifespan1 entry21.800000Lifespan3 entries22.100000Lifespan1 entry22.300000Lifespan1 entry22.400000Lifespan1 entry22.500000Lifespan1 entry22.700000Lifespan1 entry22.800000Lifespan2 entries22.900000Lifespan2 entries23.000000Lifespan1 entry23.200000Lifespan2 entries23.600000Lifespan1 entry23.800000Lifespan2 entries24.000000Lifespan1 entry24.100000Lifespan3 entries24.200000Lifespan1 entry24.400000Lifespan1 entry24.500000Lifespan2 entries24.700000Lifespan1 entry24.800000Lifespan1 entry24.900000Lifespan1 entry25.000000Lifespan2 entries25.200000Lifespan1 entry25.600000Lifespan2 entries26.000000Lifespan1 entry26.100000Lifespan1 entry26.200000Lifespan1 entry26.600000Lifespan1 entry26.700000Lifespan1 entry26.800000Lifespan1 entry26.900000Lifespan1 entry27.000000Lifespan3 entriesShowing 51 to 100 of 180, page 2 of 4.← Previous1234Next →Sources1. Wikipedia: Birdtier 2WikipediaBird, lead sectionQuote, Bird, lead sectionthe laying of hard-shelled eggsView the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.