Home›Birds›Lifespan›45.200000Browse By45.200000FactsLifespanSourcesComments (0)Reader Challenges (0)FactsComparisonReproductive ModeWell-attestedOviparous (Egg-Laying) 1Lifespan10.000000Lifespan2 entries10.100000Lifespan4 entries10.200000Lifespan3 entries10.600000Lifespan1 entry10.800000Lifespan1 entry10.900000Lifespan1 entry11.000000Lifespan2 entries11.100000Lifespan1 entry11.300000Lifespan1 entry11.400000Lifespan1 entry11.500000Lifespan1 entry11.600000Lifespan1 entry11.700000Lifespan1 entry11.800000Lifespan3 entries11.900000Lifespan3 entries12.200000Lifespan1 entry12.300000Lifespan1 entry12.500000Lifespan1 entry12.600000Lifespan1 entry12.700000Lifespan1 entry12.900000Lifespan1 entry13.000000Lifespan3 entries13.100000Lifespan2 entries13.200000Lifespan1 entry13.400000Lifespan1 entry13.500000Lifespan2 entries13.700000Lifespan1 entry13.800000Lifespan1 entry14.000000Lifespan1 entry14.500000Lifespan1 entry14.600000Lifespan2 entries14.700000Lifespan1 entry14.800000Lifespan1 entry14.900000Lifespan1 entry15.000000Lifespan3 entries15.400000Lifespan1 entry15.500000Lifespan1 entry15.800000Lifespan1 entry16.000000Lifespan3 entries16.100000Lifespan1 entry16.200000Lifespan1 entry16.300000Lifespan1 entry16.600000Lifespan1 entry16.800000Lifespan3 entries16.900000Lifespan1 entry17.000000Lifespan1 entry17.100000Lifespan1 entry17.500000Lifespan2 entries17.700000Lifespan3 entries17.900000Lifespan2 entriesShowing 1 to 50 of 180, page 1 of 4.1234Next →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.