Սովորական որոր

• Black-headed gull colonies are permanent and can exist for decades in the absence of adverse factors. Their sizes vary from several dozen to tens of thousands of pairs.
• The black-headed gull is one of the most widespread gulls in the world, with a total population exceeding 2 million pairs. In breeding plumage, it is distinguished by a dark brown head and a white nape.
• The black-headed gull shows clearly expressed aggressive behavior in the air, chasing other birds with cries and an extended head. During this period, it makes sharp sounds, meows and clucks, and pecks the ground.