Reproductive performance of the Middle Spotted Woodpecker Dendrocoptes medius around Yasouj city (South Western Iran)

Mohamadian, Farshad and Shafaeipour, Arya and Fathinia, Behzad (2019) Reproductive performance of the Middle Spotted Woodpecker Dendrocoptes medius around Yasouj city (South Western Iran). ORNIS HUNGARICA, 27 (2). pp. 77-85. ISSN 1215-1610

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Abstract

In the spring of 2018, 18 nests of the Middle Spotted Woodpecker (Dendrocoptes medius) were surveyed in a 300 hectare area of the forest region in the south and north of Yasouj. Egg-laying began in late March. Clutch sizes were between three and seven (mean: 4.29 ± 1.25, median: 4, N = 8). The incubation period varied from 11 to 13 days (mean: 12.4 ± 0.89 days). The number of eggs that hatched in successful nests (N = 8) ranged from 2 to 5 (mean: 3.75 ± 0.89). Hatching percentage (N = 7) was 90%. Duration of the nestling period was 23–25 days (median: 24 days). Fledging dates ranged from Apr 28 to June 10, and most chicks (77%) fledged in the first ten days of May. Number of fledglings from successful nests (N = 17) ranged from 1 to 5 (mean: 3.58 ± 0.71), whereas the mean number of fledglings from all nests (N = 18) was 3.39 ± 1.09. The percentage of successful nests (at least one fledged young, N = 17) was 94.4%. The overall duration of breeding varied from 39 to 43 days (mean: 40.8 ± 1.48 days).

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