More Gull Frequently Asked Questions

Large FAQ made of gulls

When we had our first Gull Week in 2015, we answered some Frequently Asked Questions About Gulls. Today we're going to answer a few more fun FAQs about the species in this family of seabirds!

What do gulls eat? Are gulls carnivores? What do gulls drink?
Gulls tend to be opportunistic omnivores. They'll take every chance to eat almost anything! Gulls feed on fish and other marine animals. They will eat insects, worms, eggs, and small land animals. Gulls may also feed on carrion and garbage, other birds, and plant matter like seeds and fruit. As far as drinking, gulls are able to drink sea water. A special gland helps them excrete the salt before it reaches the kidneys.

What do gulls do in winter? When do gulls migrate?
Most gulls migrate between wintering grounds and breeding territory. After mating season is complete, they move to warmer climates. The specific timing of this depends on their breeding calendar. Migration distances range from the Franklin's Gull's yearly trek from Canada to South America, to species that simply disperse to the coast from more inland breeding grounds.

What are baby gulls like?
Most baby gulls have downy feathers when they hatch. In most gull species, chicks are precocial (or semi-precocial), meaning that they are relatively mobile and can leave the nesting site within a short time of hatching. Ring-billed Gulls fully leave their nest by 4 days of age. Baby Herring Gulls remain close to their nest site for the first week of life. Young gulls are typically dependent on their parents or other adult gulls for food until they fully fledge.

Red-billed Gulls with Chicks
Red-billed Gulls and Chicks by Bernard Spragg, NZ

Where do gulls go at night?
Most species of gull are diurnal, meaning they are awake during the day and at rest during the night. Gulls typically like to roost either on the water, or along beaches, dunes, or offshore islands. Sleeping on the water is only preferred when the water is calm. The exception to this is the Swallow-tailed Gull, the world's only nocturnal gull species. Instead of resting at night, they are on the hunt for food.

How can you tell how old a gull is?
This is a great part of the challenge of gull identification. There is no simple answer that covers all gull species. Gulls go through different plumages as they reach adulthood and they also go through two yearly molts.

The number of years it takes a gull to reach its full adult plumage ranges from two years for smaller gulls to three or four years for larger birds. Gulls of different ages will have different plumages.

Gulls also go through molts each spring (to "alternate plumage") and fall (to "basic plumage"). During a molt, which may take place over several weeks, the bird may appear to be in between two plumages.

In addition to the changes in a gull's feather appearance, there are changes that may occur to their legs and bills. These may change color as they age or molt!

When you know the specifics of how a species of gull ages and molts, you may be able to tell if a gull is one, two, or three years old, or an adult aged four or older.

Are gulls protected?
Sometimes gulls are considered to be nuisance birds. Their level of protection varies from place to place. In the United States, native gulls are protected under the Migratory Bird Treaty Act. In the United Kingdom, they are protected under the Wildlife and Countryside Act 1981 and the Wildlife Order 1985 (Northern Ireland).

Do gulls sing?
In general, gulls are not known for their melodious voices. Their vocalizations are often brash and loud, part of the soundtrack of the beach in many locations. Their vocalizations are typically referred to as calls, with each species utilizing a variety of different calls for communicating things like finding (or begging for) food, warning off intruders, sounding a predator alarm to the colony, and other reasons. Different calls will also be used for pair-bonding and even during copulation. Chicks have different call sounds than adults.

See our previous post for more frequently asked questions about gulls.

Birdorable Gull T-Shirts

Comments

Spurwing Plover on July 7, 2021 at 3:06 AM wrote:
I live at least maybe 100 miles from the coast and our local City of Yreka Ca which is 30 miles north of where i live(Etna) we get mosty the Ring Bill Gulls some times the California Gulls

Leave a comment

Comments with links or HTML will be deleted. Your comment will be published pending approval.
Your email address will not be published
You can unsubscribe from these communications at any time. For more information on how to unsubscribe, our privacy practices, and how we are committed to protecting and respecting your privacy, please review our Privacy Policy. By clicking submit below, you consent to allow Birdorable to store and process the personal information submitted above to provide you the content requested.

Bird Term: Allopreening

Allopreening refers to one animal preening another. While preening and grooming are usually individual actions, in some species, birds or animals will preen one another. This occurs in birds as well as other classes of animal. We previously mentioned allopreening when discussing

Swallow Family Glossary: Terms to Help Understanding Swallows

As our week-long celebration of Swallows continues here on the Birdorable blog, we're sharing a glossary of terms related to the family Hirundinidae. Understanding these related terms will help with your understanding of the unique birds in this fascinating cosmopolitan family of insect-feeding birds.

T-Shirt Tuesday: Pink Cockatoo Tank Top

The Pink Cockatoo is a beautiful species of parrot found in parts of Australia. It is also known at Major Michell's Cockatoo. This pretty bird is recognized by its flamboyant and colorful crest which shows yellow and red when raised. Our totally cute Birdorable Pink Cockatoo is...

Martha Week: Passenger Pigeon Books

Monday, September 1st will mark the 100 year anniversary of the death of Martha, the last of her species, the Passenger Pigeon. With her death our planet lost another species forever to extinction. This week we'd like to share some of the commemorative events and educational opportunities...