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Understanding the seagull and its behaviour

Seagulls will be forever associated with seaside holiday towns. However, these highly adaptable birds are increasingly found inland in our urban cities, sitting and roosting on our roofs and buildings. In fact, there is no such thing as a 'seagull' as many of the 50 or so gull species live nowhere near the sea! They love the urban landscape which we provide; ample food, great nesting places and an absence of predators.

Seagulls are found on every continent of the world. This hardy species of bird exploits every kind of habitat, it can survive the coldest climates, including Antarctica and the Arctic, as well as warmer temperatures, like deserts and tropical islands, such as the Galapagos. They are intelligent, adaptable, cunning and opportunistic birds

The three main species sometimes seen as pests in the UK are the Herring Gull, the Lesser Black-backed Gull and the Greater Black-backed Gull. They are, as a species, incredibly difficult to identify as their plumage changes as they age. The Herring Gull and the Lesser Black-backed Gull are the stereotypical birds that cause chaos in the summer, seen perched on top of your chimney to swoop down to steal your chips or get a taste of your Mr Whippy ice cream!

If you are experiencing problems with seagulls on your property, view our Spikes for Seagulls where there are seagull spikes to suit all areas and situations. Read on for more interesting answers to all your gull questions!

Seagulls nesting on a roof top

Fun Facts About Seagulls

Fine dining

As we refer to them as 'Seagulls' you would expect to see these birds fishing the ocean and nesting on coastal cliffs. However, many are moving inland and taking up residence in built-up urban areas and often landfill sites. Here food is easy to steal and an abundance of human rubbish or abandoned food waste becomes an all-you-can-eat bird buffet. They are incredibly adaptable birds, so although they traditionally would eat molluscs, small fish like sardines, crabs and shrimps, even worms and insects, they will also dine on the chicks or eggs of other birds, feed on roadside carrion or a discarded takeaway if the opportunity arises. Overall, their preference is easily accessible food

Gull predators

One of the reasons seagulls are classed as pests to humans is their penchant for feeding frenzies. We've all been there, given our kid's ice cream, turned away and suddenly 100's of gulls appear from nowhere, squawking, fighting and working together to steal the ice cream or the child! They are habituated to humans and will confidently walk right up to us and beg for food. They are no longer afraid of us, in fact, they have very few predators. In the wild, hawks, eagles and falcons are known to catch gulls in mid-air which is why some pest controllers use them to deter seagulls while foxes and even weasels will attack accessible seagull nests and chicks.

Nesting communities

Once a seagull has a safe roost, likely high up on your roof, and a never-ending food source, what is there left to do but settle down and start a family? Breeding pairs will mate for life and once they have found their forever nest base, they will return every year to this perfect spot. Gulls can live up to 30 years or more, so if they are nesting on your roof, be prepared! Don't be surprised if they bring friends along, they have a collective intelligence and if a perfect spot is found, will let their mates know and build their nesting community. They even synchronise nesting so eggs hatch at the same time and chicks can be cared for altogether, therefore ensuring their survival!

Gulls and the law

Any nesting seagull in the UK is protected by law, in fact, several gull species such as Herring Gulls and Kittiwakes are on the UK Red List, due to their declining numbers in coastal areas. Any active nest can not be removed. Active means any nest being used or has eggs in or chicks, can not be destroyed until it is abandoned and the chicks have fledged. To learn more about the UK Law, take a look at The laws that affect pigeons and seagulls and you.

A year in the life of a seagull

If you want to know the best time of year to prepare your property for the annual seagull invasion, here are the key dates:

  • February: Gulls return to the UK from their overwintering locations
  • March to April: Nesting des res spots have been found and the first eggs are laid
  • May to June: Main period of incubation, the adults will take turns on the nest for about 28 days before the chicks hatch and then the parents jointly care for their young
  • July to August: Chicks will fledge and they will start to leave their nesting colonies and buddies
  • September to January: All seagulls will have left the nesting site to holiday in their winter homes. Now is the time for action!

The best way to stop seagulls perching above the rooftops is to install specialist humane gull deterrents such as Defender® Chimney Pot Spikes. These simply stop gulls from being able to land on the open chimney pot use in conjunction with our Defender® Angled Ridge Bird Spikes or Defender® Curved Ridge Bird Spikes which fit on the ridge tiles. Once seagulls are moved from the ridge, they often abandon the building altogether. Phew!

Seagull standing in profile - fun facts

Mating behaviour

Seagulls usually mate for life which can be over 30 years! The male will return to the colony where he was born to find a mate, while a female will branch out and visit a new colony. Together they will set out to find the perfect forever home, which may well be your roof! They will lay between one and three eggs, sadly if the pair cannot produce healthy chicks they may divorce. Divorcees are seen as less attractive to first-time daters, often being left single and alone for a few nesting seasons before they can get back onto the dating scene.

Seagull science

Seagulls are one of the few birds in the world that can drink fresh and salt water. They have a special gland near their eye that removes the salt from their system. They have incredible memories too, they can identify human faces and behaviours especially those who have previously fed them.

Communication

Gulls are strong communicators, signalling one another with specific calls and even body movements. The 'Mew' call is a high-pitched 'mew' heard in flight between individual members of a flock. The 'Keow' call is an aggressive call towards predators and most likely humans and the iconic 'ha-ha-ha' or laughing call indicates excitement or the presence of food.

Food for thought

Gulls are omnivores and will eat fish, eggs, insects, molluscs and small mammals, even pigeons. They will consume pretty much anything including human refuse. They will happily feed on chips, takeaways and ice cream, even timing their appearance with the availability of food, such as school playground during lunchtimes or new refuse deliveries at the dump. They will perch high up and wait for dinner to arrive and if you happen to arrive holding a delicious ice cream, they will swoop in from behind, hit you on the head with their feet so you drop your well-deserved treat on the floor! Very cunning tactics indeed!

Did you know they will also dance for worms? They lure the worms out of the ground by stamping on the earth to mimic rain.

Free advice and support

The early spring and autumn is the best time of year to take action so take a good look at where the seagulls nested and install our humane| Defender® seagull spikes to stop them from returning next year. If you are unsure which type is suited to your situation, drop us an email, perhaps with a picture to sales@jonesandson.co.uk or give us a call on 01626 835055 and we can chat through the options to solve your seagull issue once and for all.

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