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Birds (Parus major and P. caeruleus) that were housed in nesting boxes placed in the proximity of a radar tower in Warsaw, Poland were examined for breeding activity (inhabited nest boxes, number of eggs, and nestlings in the nests). Control nesting boxes were located in another area of the Kampinos forsts, "free from radar radiation". Exposure levels ranged from 0.5 - 4 W/m2. Although no decrease in nesting birds was observed in the study near the radar installation, differences in the species between the two sites may have occured. |