Mallard Breeding season:
Usually March onwards, but feral populations breed at various times through year from February to late autumn. Probably single-brooded normally, but feral birds may have second brood.
Usually March onwards, but feral populations breed at various times through year from February to late autumn. Probably single-brooded normally, but feral birds may have second brood.
Mallard Eggs:
Normally 10-12, occasionally 7-16. Elliptical to subelliptical, fairly short. Smooth, waxy rather than glossy. Usually very pale green or blue-green, sometimes creamy with green tinge. buffish- green, or almost blue. (Eggs of Mallard. American Black Duck, Mottled Duck, Northern Pintail, Northern Shoveler, and even Redhead can be very similar.) 58 x 41 mm.
By female alone: beginning with completion of clutch. 26-29 days.
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