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Sydney Dragon, SCA Intern for the USFWS Arlington Ecological Services Office and passionate advocate for backyard bird feeding, says, “As a birdwatcher, we place bird feeders outside to enjoy the beauty of wild birds up-close. In turn, the birds are eating the birdseed to supplement nutrients in their diet that they may be lacking. Though there have been previous periods of climatic change, since the mid-20th century humans have had an unprecedented impact on Earth’s climate system and caused change

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این سایت تنها به عنوان یکی از منابع اطلاعاتی ممکن برای مطالعه و بررسی ارائه شده است، اما ما از هیچگونه توصیه‌ای برای استفاده از این محتوا خودداری می‌کنیم.