|MadSci Network: Zoology|
Bills are a specialisation to diet only so there is no difference between the diet aspects of males or females. Some male birds have larger and different colour crest above the beaks than their female counterparts but the shape is still the same.Long Billed Sandpipers have 20cm or 8inch beaks slightly longer beaks than the males. Sandpipers and Ovenbirds have the biggest range of different beaks among their species as a whole and their diets vary on equal status. Reference The Encyclopedia of Birds. Dr Christopher M Perrins and Dr Alex L A Middleton. 1985.
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