Birdist Rule #20: Identify Your First Gull

They are not easy, but they are worth it. Probably.

The first time I ever birded the coast I saw what I was certain were a pair of California Gulls. I was in Maine, and so this was quite the discovery for a beginner like myself. I need to alert someone to this! I thought. I need to call the 勛圖窪蹋! I didnt, thankfully, because the birds I was looking at were absolutely not California Gulls, but rather common Herring Gulls. Looking at my field guide with my beginner eyes, though, the two species looked almost exactly alike.

Theres no way to sugarcoat it: Gulls are the most difficult group of birds to identify. All the different species are just variations on the same basic theme: a gray back on a white body. Theres no, like, Red Gull, where you can look out and say, Oh yeah, theres a Red Gull. Its the one thats red. Nope, of the twenty-or-so gull species you may encounter in America, theyve all more or less got a gray back and a white body.

Quick side note: These birds are called gullsnot seagulls. Yes, gulls can be found by the sea, but also along rivers and lakes and even parking lots and landfills and dumpsters and lots of places. Get hip to the lingo, and call them gulls.

To make things even more difficult, while many birds have three basic looksjuvenile plumage in their first year of life followed by alternating breeding and nonbreeding adult plumagesa gull has several more. A gulls transition from brown juvenile to gray-and-white adult can take as many as four years, with a bunch of confusing plumages in between.

A few more rapid-fire annoying things about gulls:

  • Different gull species have a habit of mating with each other, producing hybrid birds with plumage characteristics of two species. Great.
  • Since gulls spend so much time in open areas their feathers can get bleached by the sun, adding to the identification problems.
  • Because many gull species breed in the far North, most American gull-watching is done in winter. In the dead of freezing, windy winter.

Despite these difficulties (or maybe because of them), gull-watching can be extremely rewarding. The patience and skill required to correctly pick out a rare gull is the sign of an advanced birder, and its what makes larophiles (from Laridae, the family name for gulls) something like royalty in the birding world.

So have I hooked you yet? Are you ready for the kind of birding experience that involves standing still in a blowing February wind looking at the last page of a Wheres Waldo bookyou know, the one where its just a ? Good, then stick with me, because were going to start with Ring-billed Gulls.

Ring-bills are the best beginner gull because theyre common in the lower 48 (especially in winter) and have a pretty classic gull look: white body (duh), light gray back (of course), black wing tips (like most gulls!), yellow legs (sure). In winter, when theyre more common, theyll have some amount of gray smudging or flecking on the head, typical of non-breeding gulls.

But theres one field mark on Ring-billed Gulls you should look for first. Take a wild guess at what it is, keeping in mind that bird names are not very creative. Youre right! They have a ring around the bill.

Bill patterns are very helpful in gull identification. Most adult white-headed gulls have yellow bills with some additional coloring. Many species have red or black spots on the lower part of the front of the bill, called a gonydeal spot. Adult ring-bills, however, dont have a spot, theyve got a clean black band towards the tip of the bill, surrounded by yellow.

For my money, its the most helpful common gull identification point there is. If you see a gull with red on its bill, it aint a ring-billed. If you see a gull with a clean white body and gray back, and a yellow bill with a black ring around it, youre most likely looking at a Ring-billed Gull, especially if youre in a parking lot or, say, at a park (these guys are pretty social). Let your friends know, theyll be impressed.

Or actually, maybe wait, because its not foolproof. For one thing, itll only work on adult birds. If the gull youre looking at has anything but clean white, black, or gray feathersif it has dirty gray or brown feathers on its back, sayits not an adult and suddenly a bunch of other species are in the mix. In that case, take a picture, get a good field guide, and tuck in to the insane world of gulls.

Where to go from here? Keep studying, and keep looking at gulls. Ive found that when scanning a flock of gulls (or any birds, really) the Sesame Street method works best. That is: one of these things is not like the other. Look for things that stand out as unlike the other nearby gulls. Does one have a darker shade of gray on the back? Odd-colored legs? No black in the wing-tips? Each of these markers is an indication of a different species.

Look at you! Youre identifying gulls! Youre not a feeder-watcher anymore, friend, youre a birder. Now get back inside before you freeze to death.