I had the joy of watching a trio of river otters at Point Reyes last week. They are a great example of a come-back species, one of many we celebrate this week with Earth Day.

The North American River Otter is a marine mammal that was primarily extirpated or severely reduced across much of the United States in the late 19th to early-to-mid 20th century. Many local extinctions, per the U.S. Fish and Wildlife Service, occurred between the 1900s and 1950s due to unregulated trapping for the fur trade, water pollution, and habitat destruction.
We are lucky in our lifetime to observe numerous species rebound, like river otters, due to major environmental regulations in the 1970s. This was when Earth Day was born, too. Thereafter, reintroduction and conservation efforts in the 1980s and 1990s helped restore populations.

River otters in Point Reyes National Seashore had disappeared by 1960. Then in the late 1980s three river otters were discovered near Tomales and since then they have expanded throughout their range.
The river otter sighting we enjoyed last week at Abbotts Lagoon was about the fifth or sixth time we have seen them here.
River otters are in the weasel family (Mustelidae) and share distinct physical and behavioral characteristics with weasels like elongated bodies, short legs, and carnivorous diets.
North American River Otter Wikipedia
This is the lagoon, below, and the footbridge; way in the back are sand dunes leading to the Pacific Ocean. Wild iris flowers in foreground.

Lontra canadensis are highly sociable and frequently play in water, which helps young ones learn hunting and survival skills.
They use various vocalizations and scents to communicate within their groups.
They also engage in what is called latrine behavior. River otters extensively use communal latrines near water edges to communicate, marking territory through feces and urine. These areas are also used for grooming, scent-marking, and playing.
They use these sites especially in spring and fall, and we were there last week to witness their curious scat dance.
One otter got out of the water, arched his back, stomped back and forth on his hind legs, then defecated (the otter in the center, below).

Right after that one of his buddies vigorously rolled around in the scat, top otter in photo below.

The three otters rolled around and cavorted in the dunes, then playfully slid back into the water and resumed their hunting.

Each otter disappeared under the water and came up with a fish wriggling in its jaws and rather savagely gobbled up the fish.

While the three otters romped and hunted, nearby great egrets and great blue herons quietly hunted tiny fish and stayed out of the way.



Every time we observe the river otters in this corner of the lagoon they are eating fish, their number one prey.
But they also eat crustaceans, like crayfish, also reptiles, amphibians, shrimp and some birds. I’ve read reports that an unusual behavior of the Abbotts Lagoon river otters has been spotted lately, preying on brown pelicans here, but I have never seen this.
We were lucky that day last week, watching and photographing this comical river otter dance at the quiet shoreline of the lagoon.
A raven pair acrobatically spun together in the sky above us while swallows built their mud nests under the footbridge. It was still too chilly for dragonflies or butterflies, but fuzzy caterpillars dotted the trail and the new salmonberries reached out for the sun.

The glories of spring on planet Earth.
Written by Jet Eliot.
Photos by Athena Alexander.















































































































