5934 x 4125 px | 50,2 x 34,9 cm | 19,8 x 13,8 inches | 300dpi
Date de la prise de vue:
25 mai 2016
Lieu:
Loch na Keal, Isle of Mull. Inner Hebrides. Argyll and Bute. Scotland. UK.
Informations supplémentaires:
Herring gulls are good at producing all three eggs into flying birds. This means that at least one (often two) of the newly flying chicks loses both their parents within days after first flight. Some of these can later be seen in flocks of smaller gulls like the black-headed gull (Chroicocephalus ridibundus) or the common gull (Larus canus). They are probably not welcomed in such flocks, but follow them for some months anyway, and do thereby learn where to find food. Lonely juvenile herring gulls born in urban environment can also be seen staying for a some weeks close to outdoor restaurants and similar facilities. By November or December most juveniles have found other "mates", usually in water close areas. The herring gull doesn't need swimming, but seems to enjoy all kind of waters, especially on hot summer days. The herring gull can only catch slow creatures, like small crabs, which they often drop from some altitude in order to get them opened. The birds haven't got any real power in its jaws while biting, but it may "pick" with better strength. Fish on land, eggs of other birds, and helpless chicks of smaller ducks (and similar birds where the female is the only caretaker of up to 9 eggs and chicks) are about as much predator the bird gets. It's then far more successful as a scavenger. Like vultures, adult birds can dig their whole head and neck in to for instance a dead rabbit. Although not always appreciated by mankind due to their dropping and screaming, the herring gull must be regarded as a "natural cleaner", and just as with crow-birds they help by keeping rats away from the surface in urban environment. Not by killing rats but by eating the potential rat food before the rats get the chance. Unlike real scavengers, herring gulls also eat most kind of other things than meat, like wasted food of all kind, from bread to human vomits. They seldom eat fresh fruit, but windfalls and rotten fruit seems more tasteful.
