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Abstract
The present study deals with general trends in clutch-size of local birds and examined some
of the hypotheses regarding the adaptive significance of the timing of breeding and variations in
the clutch size, that have been put forth as possible explanations with in seasonal variation of
average clutch-size of the birds. In the present work, recorded clutch size of 15 bird species
belong to 10 families of 5 different orders most of them were passerines. Studies on clutch size
helped to study life history traits of various birds, particularly Brahminy Myna Sturnus