Home›Birds›Common GroupBrowse ByCommon GroupFactsCommon GroupSourcesComments (0)Reader Challenges (0)FactsComparisonReproductive ModeWell-attestedOviparous (Egg-Laying) 1Common GroupFilter Results15 entriesReproductive ModeAllOviparous (Egg-Laying) (15)Taxonomic Rank OrderAll5 (15)Show ResultsBrowseCompareBirds Of Prey (Raptors)Birds50 entriesCuckoosBirds10 entriesGulls, Terns And AuksBirds30 entriesHerons, Egrets And AlliesBirds16 entriesKingfishers And AlliesBirds9 entriesOther BirdsBirds60 entriesOwlsBirds9 entriesParrotsBirds12 entriesPasserines (Songbirds)Birds95 entriesPenguins And SeabirdsBirds40 entriesPigeons And DovesBirds11 entriesRatites And Flightless BirdsBirds5 entriesShorebirds (Waders)Birds37 entriesWaterfowlBirds21 entriesWoodpeckersBirds6 entriesSources1. 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.