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The Breeding Biology of the House Sparrow Passer domesticus in Israel

Raya Singer and Yoram Yom-Tov
Ornis Scandinavica (Scandinavian Journal of Ornithology)
Vol. 19, No. 2 (May, 1988), pp. 139-144
Published by: Wiley on behalf of Nordic Society Oikos
DOI: 10.2307/3676463
Stable URL: http://www.jstor.org/stable/3676463
Page Count: 6
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The Breeding Biology of the House Sparrow Passer domesticus in Israel
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Abstract

The breeding biology of the House Sparrow was studied in the Mediterranean coastal plain of Israel. Egg laying occurred from the end of March until mid July. The mean clutch size was 5.05 eggs with a modal clutch size of 5, whereas the most productive clutch size was 6 eggs. On average each pair laid 2.3 clutches per year from which a total of 5.75 young fledged. Mean egg weight increased with laying sequence within the clutch. Incubation length was negatively correlated with ambient temperature. Average breeding success was 70.0%. Nestling growth rate was negatively correlated with brood size, but both the time the nestlings spent in the nest and nestling feeding rate were positively correlated with brood size. The time interval between broods increased by on average 1.6 d for each additional chick raised in the previous brood. These results are compared with those obtained for other populations of House Sparrows.

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