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Abstract ▼ AI-Helper

The Blue Rock Thrush (Monticola solitarius) is distributed along the Korean coast, but its migratory and breeding habits are poorly known. To determine migratory patterns and ㏊bitat use of the Korean population, bird ringing, daily counts, and territory mapping were conducted on Hongdo Island, Korea...

The Blue Rock Thrush (Monticola solitarius) is distributed along the Korean coast, but its migratory and breeding habits are poorly known. To determine migratory patterns and ㏊bitat use of the Korean population, bird ringing, daily counts, and territory mapping were conducted on Hongdo Island, Korea from 2005 to 2009. Significant monthly c㏊nges in daily occurrence along with an international ring recovery suggested the presence of migratory habits, but ringed birds showed weak site fidelity to the study area. Breeding densities and mean territory size were of 7.7-9.2 pairs/㎢ and 2.87±1.01㏊ (range: 1.73-4.54㏊) in the study area. Breeding pairs did not select habitats randomly on regional and territorial scales. Among the seven habitat types assessed, sea surface areas were avoided, and rocky cliffs without vegetation and with hard substrates were preferred. No other significant differences in habitat preference were detected. Considering this habitat preference, we suggest that the coastal distribution of M. solitarius in Korea may be related to landscape traits limiting the occurrence of precipitous cliffs in inland areas rather than related to a preference for coastal habitat types, such as intertidal areas. Further studies, including three-dimensional space use, foraging behavior and diet are needed to refine our knowledge of habitat preference and distribution in the Blue Rock Thrush.

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