Seasonality in house sparrow (Passer domesticus)
Amit Kumar Trivedi
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Seasonality in house sparrow (Passer domesticus)

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Seasonality is a compulsory adaptation for survival of many species. Birds are seasonal. Adult birds exhibit seasonal cycle in several functions including bill and plumage colors, molt, body fattening, parasitic load, body mass, gonadal growth and development, hormone levels, immune system, song production, nest building, parental care and migration. Most seasonal events are centered on seasonal reproduction. It is of considerable importance to study how an organism's short-term and long-term events are timed to occur at the most favorable season of the year. In a seasonal environment, light-d...