Tag Archives: Horsehead Seal

Horsehead Bro Time!

Gray Seals, also known as Horsehead Seals, are considered largely solitary creatures however they become social during breeding season. When in the water off our local Cape Ann beaches, typically we see  one or two at a time, possibly three of four, with some distance between each other. What fun to see a dozen Gray Seals bobbing alongside one another, sleeping and sunning in these last days of summer. It’s not yet mating season and the females are pregnant at this time of year. This little aggregate looks like congenial bro time although that will all change when mating season begins.

Gray Seals are found on both shores of the Atlantic, and at the Baltic Sea. The map below shows the distribution of the western Atlantic coast population.

HORSEHEADED SEALS!

Lately there has been a pod of Gray Seals just off shore. I counted five one morning. Mostly they yawn and doze but the other day, two were sort of “frolicking,” if you can call it that.

I read Gray Seals mate and pup at this time of year. I guess we’ll have to wait and see what their next moves are. They’re official name is Gray Seal, but I love one of their nicknames, the Horsehead Seal, because it is aptly descriptive. The bulls especially have large heads.

One of the ways to tell the difference between a Harbor Seal and a Gray Seal is by looking at their heads. Harbor Seals have the large round “puppy dog” eyes, heart-shaped nostrils, and proportionately smaller heads.

Harbor Seal

Gray Seals have proportionately large heads and flaring nostrils.

Harbor Seal head shape left, Gray Seal head right

Harbor Seals have a concave shaped forehead, with a dog-like snout. The head of a Grey Seal is elongated, with a flatter forehead and nose.