Scholarship student

Thursday, September 13, 2023

This past week we met with our most recent CalPoly Scholarship student, Eva Moylan. We’d like to introduce her to you. All of your donations made this possible! THANK YOU!

Eva Moylan with male American Kestrel

Eva told us this bit of information:

“I am currently going into my fourth year in Biological Science at Cal Poly and for the past few years I have been part of the Francis Ecology Lab, which focuses on evolutionary ecology, community ecology and conservation. Since 2021, I have been involved in the Black Oystercatcher Monitoring Project in SLO County. This project was originally a 10-year, Audubon funded, citizen science study with the goal of collecting nest monitoring data on Black Oystercatcher reproductive success along the West Coast. Locally, the project was taken over from California State Parks by Cal Poly in 2022, and we are continuing breeding season monitoring efforts. Additionally, we have begun incorporating telephoto imaging of Black Oystercatcher eyes to discern if pupil irregularities can be used to identify individuals since our local population isn’t banded. 

Another ongoing project in this lab involves visiting museum skeleton collections to take orbital, sclerotic ring, and tarsus measurements to calculate light-gathering ability of the eye. These data are used to determine how different species may be evolving over time in response to increasing light pollution. Two other students and I visited Berkeley’s Museum of Invertebrate Zoology this August to get measurements for species not currently in the dataset and we are looking forward to visiting the Museum of Natural History in Los Angeles later next week.

This summer through the Frost Summer Undergraduate Research Program, I’ve had the opportunity to work on a project using MAPS banding station data with Dr. Clinton Francis and Dr. Sarah Jennings. This dataset currently includes North American bird capture data spanning from 1989-2018 and our goal is to determine if species-specific productivity and abundance trends can be connected to environmental change across the continent. I’m excited to continue working on this project as a senior project! Additionally, this summer I was able to volunteer the Powell II MAPS banding station in Los Osos. I gained experience using mist nets and handling birds as well as learning what and how data are taken during this process. I loved being involved in a bird banding station and will definitely be looking into internships in this field after graduation to gain more experience!

Bob Isenberg and Eva Moylan at Morro Rock

From a young age, scientific illustration has played a large role in my interest in birds so I hope to incorporate it into my future career as well. When I began my undergraduate degree in 2020, I was interested in pursuing scientific illustration after graduating with a B.S. in biology. As I have become involved in ornithological research within the past couple of years, I have developed a love for scientific inquiry and the process of investigating new questions so my main goal for the future is to pursue a research career in avian behavior and conservation. However, I am inspired by the connection between science and art and I would love to find a way to incorporate research, illustration and science communication where I can also continuously learn from others. I am so grateful for the opportunities I have been given through Cal Poly and the Francis Ecology Lab to discover my interests and gain experience in this field, and also to organizations that support biological science students like the Pacific Coast Peregrine Watch!”

Come see us out at Morro Rock, Morro Bay, CA , USA. Bob is there between 10AM and 2PM every day.

Happy trails, Bob and Heather

Posted in donations, Morro Rock, scholarship | Tagged , , | 1 Comment

First flight…

21 May 2023

Arriving at Morro Rock this morning, the one single chick on the north side the Rock was already airborne. Flying low and slow, we thought it might just be another bird.We had not expected the chick to fly for another week. When he landed we found him in a long strip of green brush with gull nests above and below him. 

The magnified chick can be found in the lower right corner. Photo by Jim Twentyman

The adult female  kept flying over and diving on him trying to get him to fly. With no luck, she then brought a bird to eat, which he did. Tomorrow we will be further to the south end of the north face of Morro Rock where all the chicks from the past seem to gather . It’s called the nursery. 

See you there.

Happy trails, Bob

Posted in chicks, Morro Rock | 1 Comment

Falcon Alert…

Pacific Coast Peregrine Watch has experienced a temporary set back due to the absence of Bob Isenberg.

I have undergone back surgery and am recuperating doing lots of rehabilitation at Bayside Care Center in Morro Bay, CA. Not to fear the Peregrine Falcons are in good hands with my buddy, Jerry Pyle, who is providing the spotting scopes and information. 

The birds are beginning to nest now. Both pairs north and south have begun selecting nest sites in the last two weeks. Normal progression for this time of year is egg laying in the middle of April. Hatching will be thirty one to thirty three days later. Forty four days to fledging from day of hatching. In other words by the first of June, you should see young falcons flying. 

Look for Jerry and the spotting scopes.  On windy days you might not see Jerry or may find him on the south side of Morro Rock. 

I plan on returning the first of May. 

Happy trails, Bob

Posted in breeding, Morro Rock, peregrine | 11 Comments

Love on a ledge…

20 February 2023

The peregrines continue breeding daily, about every hour or so, but not always where we can observe them. Yesterday we did watch the pair breed twice on the skyline an hour and ten minutes apart. That first coupling occurred while the female was eating a small bird the male had brought her.  As spring continues, copulations will become more frequent, by April coupling can occur every thirty minutes.

Item: The sex act called a “cloacal kiss” takes 5 to 10 seconds to complete.

For those of you who have kindly used Amazon Smile to benefit our Pacific Coast Peregrine Watch, a 501(c) 3 not for profit, we thank you.

We have been notified that “The AmazonSmile customer-directed donation program will permanently shut down on February 20, 2023. To learn more, visit here. Read more about Amazon’s ongoing community support here.”

If you wish to continue donating a little or large amount, we would be eternally grateful for you to mail a check or use the DONATE button.

Happy trails, Bob

Posted in breeding, Morro Rock | Tagged | 1 Comment

The drought is over…

21 December 2022

For the last two months, all we have seen of the Peregrine Falcons in that time is a flyby once maybe twice a week, but no landings or something we could put a scope on.  Instead, we have been watching the Burrowing Owl since October 9.

Burrowing Owl Photo by Heather O’Connor

He has kept us afloat all this time. But now the falcons are back and with a flurry! Chupping like crazy, bonding, hugging, beaking, feaking and making a fuss over each other. Everybody is happy!

Peregrine Falcon Photo by David Lawrence

During all this time the falcons have been mostly back in the Bay estuary feeding on all the wintering ducks* that have been arriving in late fall. It happens every year. I just get twitterpated when I have nothing to see or write about.

Happy trails, Bob

Item: * Hence the name “Duck Hawk.”

Posted in Morro Rock, other birds | Tagged | 1 Comment

Winter Greetings 2022…

Wishing you Peace and Health in the New Year 

We had a very busy birding year with Bob going daily to Morro Rock showing hundreds of visitors the Peregrine Falcons, a Burrowing Owl and many other birds. Heather went out eBirding keeping Checklists for Cornell most days and is up to 277 species in the San Luis Obispo County so far. She also went on a Pelagic Trip.

Photos from Top Left down. Peregrine Falcon, Burrowing Owl, Bob, Pigeon Guillemot, Blue Grosbeak, Western Gull, Black-crowned Night Heron, Nuptials’s Woodpecker, Black Oystercatcher, Heather, Black-footed Albatross, American Avocet.  

Our best to you in the New Year

Bob Isenberg and Heather O’Connor in Morro Bay, California, USA

Posted in Birds, Winter Greetings | Leave a comment

Guessing…

30 March 2021

For the past week, the behavior of the south side female falcon is consistent with egg laying, i.e. a couple of hours in the nest site, then comes out, flies around as usual and perches. Every thing you would do on a normal day. 

Today, she was three plus hours in the eyrie and the tiercel brought in prey after an aerial food exchange in front of the nest site. She lands at the nest site. However, she does not leave and go to a “dining rock” with prey which would be normal procedure. Instead she takes a few quick bites at the edge of the nest site opening then returns to the back of the eyrie. 

If she is incubating, normally she would leave with prey to eat and the male would take his turn on the eggs. But being a young pair, who knows! He might think she’ll do it all. 

When I left at 3PM, she was still in the nest site. He was sitting on a rock 50 yards away. 

If this is the beginning of incubation, and I think it is, chicks should hatch around the first of May. And be visible two to three weeks after that. 

Happy trails, Bob

Posted in eggs, incubation | Tagged , , | 6 Comments

First sign of bonding…

18 November 2020

The peregrine falcons have been scarce on the “rock” for the last month or so. This is mainly due to all the migrating waterfowl coming into the back bay estuary during the fall and winter migration. I suppose now this is their holiday feast because we don’t see them returning to the “rock” with prey. 

Just this morning two Bald Eagles were reported eating a coot on the pickle weed marsh. But this morning while watching surfers, I spotted what looked like a single falcon high on the skyline near where the waves break on the “rock.”

Photo by Bob Isenberg

With a closer look with my 10×42 binoculars, there were two falcons perched close to each other. This is the time of year they start renewing their bonds. Breeding can begin in the next month or two. The earliest I have seen copulation was 30 November ten or twelve years ago. For this pair of falcons, the first breeding of this year was 7 January 2020. This coming year at Morro Rock we should have two breeding pairs now that the south side tiercel has molted into adult plumage. 

Photo by Heather O’Connor

Happy trails, Bob

Item: The two photos of the “rock,” one taken with an iPhone and the other with my Nikon P1000. The falcons are at a distance of 302 yards from me.

Posted in bonding, peregrine | Tagged | 8 Comments

Trip to PBRG…

17 June 2020

Yesterday, we took a drive to the Predatory Bird Research Group located in Santa Cruz, California, about a three hour drive to meet with Zeka Glucs, Ph.D., the Director, at her home to deliver the young falcon remains for further examination which would include DNA samples and mercury analysis. These are accomplished by removing three small scapular feathers from the back area for DNA.

She sexed the young falcon as a male by measuring the outside diameter (OD) of the tarsus (lower leg) and the beak from cere to tip. Males will be smaller in both measurements by mere millimeters.

“The Ken Norris Museum was very happy to add it to their collection. They love our specimens because they always come with so much associated data! For mercury we use the tip of the 4th secondary feather. It was grown while in the nest so we can estimate the area where their food was captured during that time. Generally mercury is associated with the marine food web so it will be valuable to have your Morro Rock peregrines represented.” Zeka Glucs

Happy trails, Bob

Item: From a meeting 8-10 years ago, I had met Zeka as a fledgling biologist at Morro Rock and helped her find the falcons. It’s such a pleasure meeting passionately involved people on their return trips to Morro Rock and hear how they have pursued their studies. 

Posted in falcon, fledging, juvenile, Morro Rock, peregrine | Tagged , , , , | 3 Comments

And then there were three…

8 June 2020

We had determined the sex of all four birds as two males and two females. All have been flying exceptionally well. The young males have been showing a lot of speed and agility. 

Today, we were alerted by a visitor to Morro Rock that a man had seen a dead juvenile peregrine on the beach on the south side of the Rock parking lot. Three of our crew went to see and verify the sighting. Among the rocks where the sand meets the bluff, it lay wedged between the rocks. A beautiful young falcon in perfect condition.

Any number of things could have happened. I won’t speculate, but I have read that 50% of young birds will not survive their first year. It’s sad, but we will still have three chicks to enjoy.

Happy trails, Bob

Item: When I examined the bird the right wing felt broken, the beak near the right side of the cere was scraped and bleeding and the right eye was injured. 

Posted in chicks, fledging, hunting, juvenile, Morro Rock, peregrine | Tagged | 7 Comments