The photo and announcement are from Seal Sitters Marine Mammal Stranding Network, sent by Lynn Shimamoto:

Seal Sitters’ “Share the Shore” banners are once again hanging along Alki Avenue. The banners were designed several years ago as a Seal Sitters outreach project with the help of a city grant. They are to remind everyone that this is the start of pupping season, when newly weaned harbor seal pups show up on West Seattle beaches. Indeed, we anticipate “Jam,” the still-nursing pup who has been frequently seen with mom ”Pearl,” will soon be weaned and vulnerable as he/she tries to rest and warm up on the beach. Please, if you see a seal: stay back, keep dogs off the beach, and call Seal Sitters at 206-905-SEAL (206-905-7325).

Seal Sitters is part of NOAA’s West Coast Marine Mammal Stranding Network. We respond to marine mammals dead or alive in West Seattle from Brace Point to the Duwamish River, including Harbor Island.