Blogpost written by PCMN Kathleen McLin, Cohort 3
Morning, noon, and night Northern Mockingbird males serenade us and potential mates with a cache of tunes numbering more than 200. They are often the first bird you hear in the morning and the last one singing at night. They are clever mimics incorporating the songs of other birds, frogs, insects and even machinery in their repertoire. They know so many songs that you’ll hardly ever hear them repeat the same song on the same day.
Happily for us urban dwellers, the Northern Mockingbird has adapted well to city life, perching on top of telephone poles, up high in trees and sitting on fences tail cocked upward, wings dipping in a downward tilt.
Mockingbirds prefer grassy turf over bare desert sand and feed on insects in the Spring and Summer and fruits and berries in the fall and winter months.
The photos above were taken at Mary Meredith K12 where I volunteer in the Kids in Gardens Program along side Jessica Paul Master Naturalist Education and Outreach Manager with Community Gardens of Tucson. As it appeared in the corner of my eye as a flash, this Northern Mockingbird flew inside the grape arbor snd snagged a moth. It allowed me closeup access as I sought to get my camera lens around and past the mass of grape leaves it had disappeared into. This brings up another amazing fact about these birds. They are able to identify individuals and can determine friend from foe. No doubt this Mockingbird has viewed me on a number of occasions, camera slung over my shoulder, taking it’s and other pictures in the garden. Apparently it has given me a no threat okay! Of that I am very glad.
Blogpost written by PCMN Kim Gerard, Cohort 6.
Saturday, March 19, 2022
On a mild and sunny morning, a small group of Pima County Chapter Master Naturalists met for an Advanced Training hike. We explored the Wild Burro Trail in the Tortolita Mountains, which began near the Ritz Carlton at Dove Mountain in Marana. Paul Stillman (C3) was our terrific guide, with Franklin Lane (C1) serving as an excellent tailgater. The rest of the group included Deb Petrich (C1), Jean Boris (C2), Joan Calcagno (C2) and me, Kim Girard (C6). After an informative intro from Paul and some shared hiking tips, we headed out. The Wild Burro Trail began flat and sandy, and included several crossings of a dry wash. We soon encountered the first of several petroglyphs on a large bolder lining the wash. These petroglyphs are Hohokam, and dated to approximately 1100-1450. We were privileged to view these historical records of early inhabitants of the area.
Throughout the hike, Paul shared his considerable knowledge of the area – human history as well as plant/animal life, and his own adventures. We all shared hiking stories, wildlife encounters and identification of the many wildflowers we encountered along the way. We stopped for lunch and snacks in the large wash, where there was ample shade and flat boulders on which to rest.
We were treated to wonderful views throughout the hike, surrounded by Saguaros and many other cactus species. The wash was lined with blooming Chuparosa in every direction, and we all remarked at how many there were and the amazing color they added to the landscape.
There was a steep and rocky section of the trail, but Paul kept a moderate pace and we made frequent stops to enjoy the surroundings catch our breath.
When we reached the Alamo Springs area, we saw the remains of an old rancher cabin and a hand-dug well. There was an excellent interpretive sign that showed photos and information about some of the early, non-indigenous inhabitants of the area.
Who doesn’t wonder what animal made the tracks we sometimes see on hikes, or even in our own yards? And who hasn’t wondered what kind of scat we “tripped” over.
On April 16, 2022 Cohort 6 had a special lab at Cienega Creekled by Master Naturalists Hank Harlowe, PhD, Michelle Kostuk, and supported by Master Naturalist Deb Petrich and AlexWolfe, Environmental Program Specialist with PCNRPR. We had 8 students: Diane, Francesca, Chris, Trinity, Carly, John, Izetta, and Kim; and tracks and scat were the order of the morning. Hank and Michelle set up ahead of time and greeted the group at the side of the (dry) creek. Big shout out to Deb Petrich for pulling it all together, and to Alex Wolfe for their contribution.
We started by naming the possible critters who lived in this area and what families they were in; deer, javelina, skunks, bobcat, ringtail, mountain lion, coyote, fox, bear, turkey, and vulture were some of the animals discussed. Hank and Michelle showed the tracks of most of these critters, some prepared tracks and some they came upon naturally. It’s actually a complicated process to analyze tracks! A full analysis will tell a story. Was the animal sauntering along, running from danger, on a missionto get someplace, or maybe stalking prey?
Students were then shown how to cast molds of tracks using paper mâché, salt, and water. Once the solution was added to the tracks, we started off down the trail to search out the real tracks and the real scat, as the molds dried.
Some mentioned how excited kids were to talk about poop. From my observation kids aren’t the only ones! Hank brought along bags full of different scat so we could compare and contrast each animal’s poop, including cow and horse because they too occasionally roam the area. An animal’s diet is a big factor in identifying scat, as are shape and form. We think we saw fox, bobcat and coyote scat on the trail. Figuring out scat seemed a little easier than tracks and it was certainly easier to see!
It was a perfect southern Arizona day with a breeze, a hazy sky, and the beautiful shade of the cottonwoods. And we learned a lot thanks to the generosity of our knowledgeable Master Naturalist instructors!
Blogpost written by PCMN: Kathleen McLin
Black and Turkey Vultures may strike fear into some individuals but to me they are unique, fascinating birds.
Their scientific name Cathartes aura is Latin for “ cleansing breeze”. Their bald head prevents carrion from sticking and rotting as they dig into carcasses. Strong internal enzymes destroy bacteria from the rotting meat they eat to keep them healthy. These birds do not have talons like Raptors. Their feet are more like that of a chicken. They use their strong well developed beaks to tear at hide and meat.
Turkey Vultures have a highly developed sense of smell and can locate a dead animal in as little as 12 hours after death and up to a mile away. Black Vultures lack this keen ability and fly higher than their lower flying Turkey Vulture cousins to locate a meal. Both have 2 nostrils that are large and open so it is possible to see right thru them. If a piece of meat gets lodged in the cavity it can be removed by a talon.
A large number of these birds is called a kettle. Both species may share a meal but it is the larger Turkey Vulture who eats first.
Vultures can hiss or grunt but have no other vocalizations as they have no voice box. We receive injured, both Turkey and Black Vultures at the Tucson Wildlife Center from time to time. Upon arrival I very much look forward to helping with their recovery. Holding one, seeing it so close up is a memorable experience.
They weigh only 2 to 4 lbs. with a wing spread of up to 6 feet. Freaky amazing!
Blogpost written by PCMN Peggy O.
Members of Cohort 6 of Pima County Master Naturalists (PCMN) attended their first in-person field experience together at Pima Prickly Park on Saturday, March 5, 2022. Dick Wiedhopf, the President of the Tucson Cactus and Succulent Society (TCSS) shared the history and mission of the Park, a partnership between Pima County Natural Resources Parks and Recreation and the society. The ever-evolving collaboration has resulted in a “work-in-progress landscape highlighting cacti and other succulents. Free and open to the public since 2011, the park has been maintained and improved by a dedicated group of volunteers from the TCSS who “rescue” cactus and succulents to add to the park and sell at community plant sales to subsidize their work…fulfilling the TCSS mission of “knowing, sharing, growing, and conserving.”
Amy Belk, the Program Coordinator for Pima County’s Native Plant Nursery (NPN), continued the tour of the facility that grows and cares for plants being raised for a variety of public projects. The NPN also rescues native plants from public and private property slated for development and maintains a seed library of 130 native species. The MN’s also had a chance to “get their hands dirty” sampling some typical volunteer duties including weeding, watering and transplanting.
Special thanks to the Pima County Native Plant Nursery and the Tucson Cactus Native Plant Society for providing an example of what is possible with vision, creativity, and dedication. They have created a partnership that benefits all residents of Pima County and provides leadership in the conservation of our Sonoran Desert Natural Resources. PCMN have worked as volunteers with both organizations and have logged more than 500 volunteer hours at the Prickly Park and Plant Nursery.
Southern Arizona Regional Science and Engineering Fair
By Franklin Lane
Every year SARSEF conducts a regional science fair for local school, science fair winners. These students compete for awards in various categories and for an invitation to the National level competition. For the last three years the regional fair has been virtual. Normally projects are displayed and judged live at the Tucson Convention Center. SARSEF’s mission is to create “Arizona’s future critical thinkers and problem solvers through science and engineering.” Participants have gone on to become “neurosurgeons, engineers, wildlife conservationists, veterinarians, teachers and professors, journalists and so much more.” Student projects can additionally be recognized by SARSEF sponsors. This year the Pima County Chapter of the Arizona Master Naturalists sponsored an award for K-8 students. The Chapter Board of Directors voted to award a trophy and a $100 cash prize to that project which best explored “The Ecology of the Sonoran Desert.”
An ad hoc committee consisting of Peggy Ollerhead (C3), Marlene Shamis (C4) and Franklin Lane (C1) was formed to apply for SARSEF sponsorship and ultimately judge eligible projects. Hundreds of projects were triaged electronically for both age group and topic relevancy. A final six were then carefully considered by the committee for the PCMN award. The winner was Myla Closterman, a 2nd grader in Ms. Laura Kupper’s class at Canyon View Elementary School. Myla’s research investigated Antlions (Myrmeleon sp.) and was aptly named “The Lion Project”.
You can view Kyla’s project here:
Hopefully this will become an annual event for the Chapter.
by Dave DeGroot, Cohort 2, Feb. 23, 2022
I am fascinated by the 2,400-acre piece of raw desert northwest of Tucson called the Tortolita Preserve. The land is leased from the state by the town of Marana and its boundaries lie within the Marana city limits.
You could say that almost half of this huge piece of land – close to a thousand acres – is unexplored. The western 40% of the Preserve (shaded red in the map) lies outside of the Preserve’s well-known hiking and biking trails and beyond the utility road that most people mistakenly think is the western boundary. There are no good roads into this area. At present, this part of the Preserve is the domain of off-roaders, lots of cattle, and (illegal) target shooters. Few people even pay attention to the western border, let alone understand this area’s plants, animals, geology, and cultural history.
Ethan Fraijo and I are close to completing an amateur, preliminary biodiversity survey in the Preserve. Lately we have been stepping off the western boundary lines with a special topo map, a GPS device, compass and some temporary surveyor’s tape on tree branches, which we plan to remove later. When you add up the distance we are walking around the western border of the almost-thousand acres, it adds up to about 2 ½ miles, running through rough, trackless and virtually unexplored land.
Just a few of the interesting discoveries we have made in this western 40% of the Preserve include:
• …remains of an old aqueduct that channeled water from deep in Wild Burro Canyon eight miles to dam-like berms constructed by the U.S. Bureau of Reclamation (USBR) at the southwest corner of the Preserve. Yes, the USBR is the same government agency that is famous for constructing the Hoover Dam, Glen Canyon Dam, and dozens of other mega-dams throughout the western states during the last three-quarters of a century! Seventy-five or 100 years ago there must have been a substantial amount of water running through the Preserve – enough so the USBR was working on ways to conserve it.
• The northwest part of this area features hills of Pleistocene soil documented by State of Arizona geologists. While this particular kind of soil may not be unique around Tucson, it is fascinating to consider that it may a hundred thousand years older than all the other soils in the Preserve – land on which 14-foot tall mammoths, saber-toothed cats, camels, dire wolves, ground sloths, etc. may have roamedbefore the end of the last Ice Age.
• The southwestern grassy areas of the West Preserve could be called the Kingdom of the Ants, with huge clearings made by harvester ants and turrets constructed by leaf-cutter ants. In some washes you seea dozen or more ant hill/turrets in close proximity that are probably the home territory of several queens cooperatively ruling a massivecolony.
• The western acres (unfortunately) have many examples of dumping and destruction by irresponsible off-roaders and shooters. We foundold TVs, a bullet-riddled automobile fender, lots of shot-up beer cans, and hundreds of old shell casings. This misuse of the desert will hopefully be alleviated as the Town of Marana finalizes plans to put up fences along much the same western boundary lines now being temporarily marked by DeGroot and Fraijo.
Master Naturalists will have an opportunity for some memorable personal exploration of the Tortolita Preserve in a few months. Franklin Lane iscurrently collecting names of Master Naturalists who are interested in participating in a big BioBlitz planned by
• the Town of Marana,
• the Tortolita Alliance,
• Arizona Master Naturalists,
• the Coalition for Sonora Desert Protection, and
• the Arizona Game and Fish Dept.
Training will be provided. The big event, which could take place in November, will probably put Master Naturalists in prominent positions in a small army of citizen-scientists. PCMN Franklin Lane is gathering names of interested participants now. If you think you would like to be part of the BioBlitz, please send Franklin an email at
…and if you have a couple of hours to spare sometime, drive out to the main entrance of the Tortolita Preserve at 6250 W. Moore Road and walk a mile or two on the user-friendly 9.5-mile trail system.
Getting to the Root of Things
Blogpost written by PCMN Kathleen Mclin
Volunteering with Jessica Paul, Master Naturalist and Community Gardens of Tucson Program Leader is a real life “Growth“ experience. Students, teachers and myself included are learning valuable skills
and life lessons as budding gardeners.
When I signed up to volunteer I had little more than a basic knowledge of gardening. At home, a few flower beds, failures and successes with a few veggies, not sure what I might contribute but one thing I knew for sure, where there is a garden there is life!
With my camera in hand I decided to dig right in (pun intended)
and hoped to add my love for all creatures great and small.
Together we are helping our youthful participants appreciate the great diversity of life that exists in and around a garden. And, we get to see, feel, smell, and eventually taste the fruits of our efforts, while learning life lessons to carry with us throughout our lives. See the example below.
Equality versus Equity a Garden’s Lesson in Fairness
Planting a garden does far more than providing food, fragrance and beauty. And though none can deny the healthful, spirit lifting benefits that sunshine and fresh air provide, Gardeners also learn different plants are not meant to be treated as equals. Gardening teaches us that fairness requires an understanding of the value of diversity. This does not mean that every plant enjoys equality (“every plant gets the same thing”) as compared to equity where (“every plant gets what it needs”).
Every plant has it’s growing season, a time when it has the best chance of taking root, thriving and maturing.
Every plant requires a certain soil depth, amount of light, and water. Some more, Some less.
For example: Beans versus Lettuce
Beans prefer warmer weather, so plant in full sun. Water plants regularly. Though compost can be worked into the soil prior to planting, don’t overfertilize the beans.
Most varieties of lettuce require cool weather or slight shading for best growth. Aged compost is optimal but average soil will produce healthy seedlings if soil is kept moist but well drained. Plant during the cool part of the year, when temperatures range in between 50/60 degrees Fahrenheit. You can plant lettuce as soon as the ground can be worked in spring.
So what is better for these 2 plants?
Equality or Equity?
Students which concept best applies to You? Why?
Tending a garden teaches great life lessons:
4. Respect for life
Care for yourself like you care for your garden. It’s in your hands to give it/and you what is needed to thrive. You reap the rewards of your own efforts.
Care for yourself like you care for your garden. It’s in your hands to give it/and you what is needed to thrive. You reap the rewards of your own efforts.
The Community Garden School project is always looking for volunteers. Contact Jessica Paul if you’d like to help