April 13th – 7:00pm – 8:00pm – One adult beaver was seen working on the primary dam. That dam is looking great. Two yearlings went over the primary dam and swam down to the secondary dam, where they were whining and competing for treats that some one had left on the dam. Mom was seen swimming down to the yearlings, where there was more whining. She started to do some mudding on the dam and the yearlings joined in for a short time. They were seen bringing handfuls of mud to the dam.HP, JR, JO

April 9th – 4:45am – One kit was seen collecting grass in the annex area. It went back under the bridge pushing a big load of grass,  heading for the dam.  Another kit was then seen swimming back under the bridge. There seemed to be lots of splashing and general beaver busy noises. JR

March 30th – 7:00pm – Three beavers had been seen,  before we got down to the secondary dam, by another beaver watcher.  A beaver was then seen coming down from high up on the bank. It entered the water by the bank hole.  Another beaver came swimming down from upstream and crossed over the secondary dam and continued on downstream. We followed it until it came to the third dam. This dam looks great and we watched two beavers working on this dam. They also had some time to wrestle with each other.  A runner stopped by to ask what we were looking at and was quite surprised to find out that we had beavers in the creek. He lived in Martinez but hadn’t heard about them. He stay and enjoyed watching them with us for awhile. It was real nice to be down again at the dam sites and to see the beavers out in the evening. Day light savings time is great for beaver watching. CR, LB, MS

March 25th – 4:45am – One large beaver was seen coming out of the bank hole near the bridge.  It crossed over the secondary dam and swam on downstream.JR

March 16th – 7:15pm – 7:45pm – One beaver was spotted at the primary dam and two were seen at the secondary dam. Looks like there is a lot of work being done on the third dam as it looks well built. A large brown rat was seen climbing onto the primary dam to get an apple, which he ate while sitting on the dam. JO

March 16th – 4:50am – Our early beaver viewer was down at the dams sites again this morning. It was reported that an adult beaver came swimming up from below the secondary dam bringing up a willow branch. There was a kit waiting above the dam. The beaver took the willow branch into the bank hole and when the viewer left, some of the branch was still sticking out of the hole. The kit spent some time swimming around the secondary dam. A great blue heron was seen below the primary dam.JR

March 15th – 4:45am – It was reported that a beaver was heard splashing about at the primary dam. A  beaver was also  seen with a snack before disappearing into the bank above the  primary dam.  Down at the secondary dam,  a kit was seen on the bank getting something to eat.  It disappeared into the bank. The viewers dog almost got sprayed  by a skunk down near the annex.JR

March 14th – 7:15pm – 7:45pm – Day Light Savings time is back and now we have some good evening viewing down at the dam sites.   It was reported that a very very  large beaver was seen down near the secondary dam along with another big beaver.  Two of last years kits also made an appearance. Good to see four  beavers at one time. JO

March 14th – 4:45am – Two kits were seen this morning by an early viewer.  One of the kits was working very hard on the secondary dam, while the other kit was seen swimming up towards the primary dam. JR

February 25th – 5:00am – One kit was seen caring a reed into the bank hole near the secondary dam. JR

February 5th – 6:30am – On a very cold morning with frost on the cars and footbridge, two beaver watchers were out meeting a TV reporter, would was going to do a story on the beavers and the drought. Two kits and two adult beavers were seen and they seem to be sleeping now up by the primary dam. Also seen was the beautiful pair of Hooded Mergansers, who have returned to the creek. HP, JR

January 27th – early morning – Mom beaver was seen coming out of the bank hole with a mouthful of reeds, which she took and placed into the secondary dam. She then returned home.JR

January 19th – 4:45am – A kit was  seen swimming around, above the secondary dam, as a big beaver came up from below with a branch. The beaver then went over to the left side and poked it into the dam with kit in tow.  At this point the kit started whining and it could have been  because he had discovered a treat on the dam.  The big beaver then took a twig from the branch it  brought up and went home followed by the kit.JR

January 18th – 4:45am – One kit was seen bringing home a snack near the dam.JR

December 31st – 5:00am – An early bird beaver watcher was out this morning and saw one kit that  came from below the secondary dam  carrying something which he deposited on the dam then went home. Another kit was below the primary dam and was  last seen on the bank rooting about.JR

December 29th – 5:00pm – One kit was seen around the secondary dam. The dam is really looking good so know work is going on and also some fresh chews were seen down stream. A green heron was also seen near the dam.HP, JR

December 20th – 5:00pm – During the viewing time, the three kits were seen but all at different times. Two came swimming down from the primary dam site. One of the kits even spent a few minutes working on the secondary dam. They all looked well. HP, JR, LB

December 15th – 4:30pm – All three kits were seen down near the secondary dam, which is looking great.  Jr., our kit from last year, was also seen.HP, JR

December 11th – 5:00pm – It looks like there has been  a lot of work  done on the dam and the  water is much deeper. One kit came swimming from upstream and another kit was seen working on the dam. All three kits were seen during the visit to the dam site.HP, JR

December 2nd – early am – All three kits were seen this morning and two of them were busy helping Mom with some dam repairs at the secondary dam. Later on one of the kits followed mom into one of the bank lodges.JR

November 24th – 5:00am – When one beaver watcher was on his way to the dam sites, he found 4 deer outside his house. Down at the secondary dam site, one kit came up from below the secondary and went into the brambles on the left below the dam and was noisily munching! A great blue heron was also seen  hunting below the primary dam. JR

November 13th – 4:45pm -With the nights getting darker sooner, it seems like the beavers are coming out sooner. All three kits, Jr. and mom were seen at the secondary dam.HP, JR

November 8th – 5:00pm – 6:00pm -Another high tide.  One kit was seen whining to Mom and then they both went over the secondary dam.  A green heron was seen also at the dam site.HP, JR

November 3rd – 4:30pm – 5:30pm – Our beaver watchers wanted to see if the beavers had adjusted to Day Light Savings Time.  They were able to see the three kits and Jr., while down at the secondary dam.  One green heron was seen and also a snowy egret, sitting on the Marina Vista bridge rail.HP, JR

October 6th – 5:15pm – 7:00pm – As the evenings get darker sooner, it is hard to know when the beavers will be out as it seems they change their schedule. We saw one kit come out around 6pm and swim around before taking some willow back to the bank hole.  Another kit came out a while later and checked things out before swimming up  to the primary dam. Looks like a lot of work has been done on the primary so hopefully they will start working on the secondary. Both dams had some damage due to the heavy rain last week. The most exciting thing of the evening was a sighting of a muskrat. We haven’t seen any muskrats for over a year. Also sighted was a very large rat, that one of the local cats was stalking. The rat was high up on the berry bushes eating berries.   HP, JR, JO, LB

September 2013

August 2013

Three kits seen July 15th

July 2013

Two kits seen June 10th.

June 2013

First kit seen May 5, 2013′

May 2013

April 2013

March 2013

February 2013

January 2013

December 2012

November 2012

October 2012

September 2012

August 2012

July 2012

June 2012

May 2012

April 2012

March 2012

February 2012

January 2012

December 2011

November 2011

October 2011

September 2011

August 2011

July 2011

June 2011

May 2011

April 2011

March 2011

February 2011

January 2011

December, 2010

November, 2010

October, 2010

September, 2010

August, 2010

July, 2010

June, 2010

June 9th 2010 – Two new Kits swimming between the old and new lodge at 6:00 am. Hooray! HP

June 4th – Mom was seen cruising around the main dam at 8:00 PM. She swam up stream to get a willow branch, which she took back to the lodge. No other beavers were seen at that time. LK

June 2nd – A yearling was seen this morning around 6:30 AM near the annex and around the old lodge. Haven’t seen the yearlings for quite a while so it seems we at least have one still around. HP

June 1st – Mom was seen near the primary dam at 8:00 PM. Soon after another beaver crossed over the dam with a willow branch heading towards the lodge. Also seen were two Mallards. JO

May 31st, Mom bringing back a willow branch from the primary dam at 8:30 PM and heading towards the lodge. She was last sighted sitting on the left bank eating some of the willow. LB & LK

May 30th, Mom and Dad seen 8:00 pm. CR

April 14th, 2010 8:45 pm Dad and yearling. Barn Owl pair. Mother mallard with 7 new ducklings and Mother mallard with 3 older ducklings. Cormorant. Song sparrow pair.

March 18th, 2010 7:15 Mom coming home carrying branch

February 22, 2010 6:45:Dad carrying tree over second dam.Mom and two yearlings

January 23, 2010 7:00 am:
Juvenile otter near secondary dam

January 11th, 2010 6:45:
2 yearlings and Mom

January 10, 2010:
Green Heron eating tule perch

December 24th, 2009

Mom filmed at secondary dam, eating tulles. Lots of chewing going on at the primary day. Great and Snowy egret.


Be part of the Worth A Dam team! Let us know about any recent beaver, muskrat, bird or otter sightings by posting a comment here or emailing mtzbeavers@gmail.com.

You don’t have to be an expert, just tell us whatever you saw and we’ll try and figure it out.

  1. Stephen Stout Says: To Whom It May Concern,Thank you to each and every one of you that participated in any capacity to save the Beavers. I have worked and lived in Walnut Creek for many years. I never had a reason to visit Martinez other than business or visit a friend. This evening my wife went out with friends so I thought it would be fun to visit my friend Kevin Bacon who lives in Martinez. My daughters joined me on the outing. After eating at Burlington’s(spell?) we visited the beavers and met several very nice people. I wanted to take the time to thank you for affording my family and I the opportunity of seeing animals in the wild. My daughters were able to walk away with a touch of nature and an experience that will last a life time. What a nice town you have. Again, thank you.
  2. Monty Says: I’ve recently been called to jury duty in Martinez. Can’t wait because I’ll be real early and try to catch a glimpse of the little critters! What an amazing thing to see. Thanks for this site and all the information.Monty
  3. Jean Says: The whole family has been seen in the last few days by a very diligent lover and videographer of the beavers. I’m so happy I’m dancing in the streets!!

Ryan says 2-15-11

my boyfriend and i decided to take a valentine’s day adventure from san francisco despite the rain and got lucky. just as we were getting impatient, we saw a critter pop its head above the water andheadtothe dam! it was around 7:30-8pm, he or she hopped up on top of the dam andwassnackingonsomething. we tried to get a better look with a flashlight (not smart) and scared the beaver away, but after a short walk we checked back and were surprised to see two beavers! can’t wait to come back when the daylight hours are longer!