Bluebird Monitoring Program at Morris Arboretum

Tracy Beerley, McCausland Natural Lands Horticulturist

Do you enjoy spending time outdoors and have a passion for birds? Perhaps you would be interested in joining our Bluebird Monitoring Program at Morris Arboretum.  This volunteer project has been organized to monitor the eastern bluebird and the nest boxes which have been mounted throughout the Arboretum.

The eastern bluebird is a migratory songbird in the Thrush Family which includes the American robin.  However, the bluebird is much smaller in size compared to this relative.  Male bluebirds are royal blue with warm red-brown breasts.  The females are much drabber in appearance yet maintain the similar elegance and shape of their counterpart.  This energetic bird is a medium-distance migrant, following patterns of north-south migration remaining in North America, and occupying the area east of the Rocky Mountains.  Bluebirds rely on insects for food.  Diving from a perch they hover over the ground to pluck beetles, caterpillars, spiders and other insects and small invertebrates.  When insect food becomes scarce in the fall and winter the birds seek fruiting trees and gulp down their juicy berries.  Bluebirds perch on wires, posts, and low branches, occupying meadows and openings surrounded by trees that offer suitable nest holes. They are cavity-nesting, building loose cup-like nests with fine grasses in cavities of trees, old woodpecker holes and man-made nest boxes which are mounted in suitable locations.  

photo by Susan Marshall

Bluebird populations are making a come-back from decline in the early twentieth century.  Contributing factors of decline included lack of suitable nesting cavities from increasing urbanization, pesticide use, and severe weather conditions.  Bluebirds also face competition for nesting cavities from the introduced European starling and house sparrow. Conservation efforts, such as the introduction of nest boxes, have been successful.  The eastern bluebird is becoming a more common sight on farmland, fence-lines, open woods, swamps and gardens. They are fairly present and a delight to see in the Natural Areas and Bloomfield Farm sections of the Arboretum.   

The Bluebird Monitoring Program was initiated this year at Morris Arboretum as a conservation effort to monitor the activity of nest boxes.  From March through July, volunteers assisted in monitoring over forty nest boxes within the Arboretum. Our findings were contributed to a citizen science based program, Nest Watch, through Cornell Lab of Ornithology.  The volunteers and I quickly learned of the immense nesting competition bluebirds face from house sparrows and natural predators. The results for this season are in; five nest boxes were used by the bluebird and a total of sixteen eggs were laid and assumed to have fledged.  We also enjoyed the experience of observing nesting swallows and Carolina chickadees.  Thanks to volunteer effort, the Arboretum was able to provide and monitor nesting habitat for the eastern bluebird. 

photo by Gretchen Dowling

For more information about bluebird volunteer opportunities please contact              
Tracy Beerley, tbeerley@upenn.edu

Learn more about birds seen at Morris Arboretum at                                             
http://www.business-services.upenn.edu/arboretum/birding.shtml

An Unwanted Garden Invader

Phytolacca americana

Over the past couple months you may have noticed a large, shrubby plant with reddish stems and beautiful purple-black berries. What you are seeing is Common Pokeweed, Phytolacca americana. Although I often find it attractive, pokeweed is generally considered an unwanted garden invader.

Pokeweed is a native herbaceous perennial. It can grow one to three meters tall and resembles a small tree. The large, thick stems are smooth and upright, while the leaves are alternate, egg-shaped and pale green. Pokeweed is supported by a large fleshy taproot that persists through the winter after the succulent stems have died back.  Pokeweed flowers are small and white and give way to conspicuous green berries that ripen to a deep purple-black color. Even though the fruit may look tempting, don’t eat it! All parts of the pokeweed plant are poisonous, including the berries.

In natural areas, pokeweed is an important wildlife plant. Berry-eating birds, such as Northern Mockingbirds, American Robins and Cedar Waxwings, load up on pokeweed berries. Many mammals including gray fox, raccoons, and white-footed mice enjoy the fall fruit as well. Both birds and mammals are directly responsible for the spread of pokeweed seeds. Despite pokeweed’s wildlife benefits, it is generally considered a weed in the cultivated landscape. Pokeweed grows very quickly and will shade out desirable bedding plants if it is allowed to grow. In many cases, pokeweed is not an aesthetically pleasing addition to a garden bed.

Pokeweed is fairly easy to control once you have identified it. The plant can be destroyed simply by digging up the taproot with a spade or soil knife. If possible, try to remove plants before they form fruit. Otherwise, the animals in your area will help spread this weed throughout your yard. Although it is probably too late to stop the spread of seeds this year, keep an eye out for new plants in the spring. In the meantime, happy weeding!

Photos by Emma Erler

5 Reasons new moms need this popular class..

Stroller Strides®! This class is a total fitness program that moms can do with their babies - it includes power walking, strength-training intervals, and a unique blend of Pilates, barre, yoga, and stroller-based exercises designed to help moms build strength and muscle tone and improve posture. Taught by certified instructor (and fellow mom), Jacqueline Walsh, it is a great workout for any level of exerciser. Jacqueline will weave songs and activities into the routine designed to entertain and engage baby, while moms are led through a series of exercises specific to her role as mom.

Top 5 Reasons new moms need to sign up for Stroller Strides:

1. To get out of the house and experience the unique natural surroundings of Morris Arboretum
2. To exercise and engage with baby
3. To form new friendships and future playdates with other moms
4. To improve your health and well being
5. To get back that pre-baby body (or better)!

Spots are limited, register today! 
https://online.morrisarboretum.org/growingminds

In the case of inclement weather, class will be modified in order to be comfortably held indoors. You must be at least six weeks post-partum to participate in this series. 

Gloomy garden days, the best kept secret

Most people think of visiting a public garden or park on a picturesque sunny day, right?

Of course, we think every day is the best day to visit! But in particular, overcast days can be a great, yet often overlooked, time to visit the garden. In case you're skeptical, here are a few reasons why a seemingly gloomy, gray day is a visitor's best kept secret:

Beat the Crowds
Because the typical response to a cloudy day is to shy away from outdoor excursions, it often means less crowds in our gardens. Take this opportunity to stroll through the grounds like it's your own secret garden!

Cooler Temps
Generally speaking, clouds act as a "heat shield". Much of the incoming solar radiation from the sun is reflected or absorbed by the clouds, resulting in slightly cooler temperatures.

Optimum Photography Conditions
The even white light of an overcast day is great for outdoor photography. Sunlight is gently diffused by the clouds, eliminating harsh shadows and extreme highlights. If shooting with a standard digital camera, use the "Portrait" setting for great outdoor images.

When is your favorite time to visit the garden? 

What to do with all that summer energy?

Summer's here: It's hot, the days are long, and the kids are full of energy!
Camp and swim clubs provide daytime relief for many during these school-free days, but what to do when the sun starts to set and the kids are still searching for something to do?

Thursdays to the rescue!
Morris Arboretum is open late (until 8:30pm) every Thursday during the summer months. It's a unique opportunity to pack a picnic dinner, bring a blanket, and enjoy the garden in a light that's not typically available to visitors. Kids will love catching fireflies too!

If you're looking for something a bit more high energy, be sure to come down this Thursday, July 18 for Let's Move! Garden Dance Party. The Let's Move! initiative was launched by the First Lady, Michelle Obama, to help solve the challenge of childhood obesity and promote a healthy future. Sounds by Shelly Disc Jockey Services will be on hand to lead the party in fun and engaging games and choreography. Free with admission. 

Love live music? Back by popular demand is our XPN Kids' Corner Concert Series! This year's line-up includes the amazing sounds of Alex & the Kaleidoscope Band, Trout Fishing in America, and The Suzi Shelton Band. For the first time, we are offering advanced online ticketing. Purchasing tickets early saves money and time at the gate on the night of the event. Don't forget your lawn chairs and blankets, although we're sure the family will be too busy dancing to use them!

Click here for more family fun events.
Below: A video clip from our latest Summer Solstice Salsa Party! 

School's out, new interns are in!

Welcome, Morris Arboretum Intern Class of 2014!

On June 17 a new group of nine interns joined Morris Arboretum to participate in our year-long internship program. Welcome, Class of 2014!

Each of the interns will work in a specific area of study at the Arboretum:
Arboriculture, Education, Flora of Pennsylvania, Horticulture, Natural Lands, Plant Protection, Propagation, Rose and Flower, and Urban Forestry.

In addition to their regular duties, interns participate in weekly afternoon seminars, field trips to other gardens and natural areas, as well as staffing the Arboretum Plant Clinic. During the year-long program, the interns are also enrolled and will receive graduate level course credit for “Issues in Arboretum Management I and II” through the Department of Landscape Architecture at the University of Pennsylvania.

This marks the 35th year of the Morris Arboretum Internship Program. The program provides hands on experience and education that prepares interns for careers in public gardens and related fields. To learn more about the Morris Arboretum Internship Program click here.

Spring 'Yard Work'

by Jessamine Finch, Hay Honey Farm Endowed Natural Lands Intern

About once a month or so, the horticulture staff unites for a morning to undertake a large job made much more manageable - and enjoyable - when tackled as a group. This past Tuesday was a “project day” in the natural lands area, under the guidance of Natural Lands Horticulturist, Tracy Beerley. Having labored diligently over the winter months to remove invasive plants from Penn’s Woods and along Paper Mill Run, Tracy was able to select native tree and shrub species to fill these newly emptied spaces. The planting list included sugar maple, red maple, mountain laurel, rhododendron, and winterberry holly. The beautiful weather made for a wonderful day, and we look forward to seeing these plantings thrive and mature in the years to come.  

All work...

....and some fun, too!