Last updated on 1-Nov 2017
There weren’t always as many Silver Gulls as there are now. Since the 1950s, society has become increasingly wasteful, with our rubbish tips now bulging at the seams. With this increased availability of food in the form of refuse, the population of Silver Gulls has exploded, and offshore islands which once supported small breeding colonies are now over-run. With so many gulls dominating these breeding islands, it is becoming increasingly difficult for terns and other seabirds to breed there.
The Silver Gull has a white head, tail and underparts, with a light grey back and black-tipped wings. In adult birds the bill, legs and eye-ring are bright orange-red.
The Silver Gull is common throughout Australia and is also found in New Zealand and New Caledonia.
Habitat: Coastal, Marine, Urban
The Silver Gull is found at virtually any watered habitat and is rarely seen far from land. Birds flock in high numbers around fishing boats as these leave or return to the coast, but seldom venture far out to sea.
With greater access to a wide range of dietary items, the Silver Gull has been able to increase its population in areas of human activity. Available nesting grounds appear to be the only limiting factor to population increases.
As with many other gull species, the Silver Gull has become a successful scavenger, readily pestering humans for handouts of scraps, pilfering from unattended food containers or searching for human refuse at tips. Other food includes worms, fish, insects and crustaceans.
Silver Gulls nest in large colonies on offshore islands. Often two broods will be raised in a year, and both adults share nest-building, incubation and feeding duties. Eggs are laid in a shallow nest scrape, lined with vegetation.
