Category Archives: Research and Monitoring

Another successful year for The Bobolink Project

Bobolink © Allan Strong

We are proud to share a final report on what The Bobolink Project accomplished during the summer of 2017. But before we share the results, we first and foremost thank our donors. With their financial support, conservation interest, and promotional efforts, The Bobolink Project would not exist. This is very much a grassroots conservation effort—pun intended—and we are deeply appreciative of our donors’ support.

We also thank the farmers who applied to and participated in the project. Without them the habitat for grassland birds would not exist. We are glad that they are conscious of the birds on their fields and that they are willing to participate in a solution that allows them to grow a “crop” of grassland birds without compromising their financial stability.

Donations and Farms Enrolled

In the months leading up to the 2017 field season, we raised just over $38,000 to support the project’s objectives, and 99% of this donation pool was given directly to the participating farmers. Based on the fixed-price reverse auction, the final bid that was accepted from the farmers was $60/acre.

With this financial support we were able to enroll about 630 acres distributed among 17 farms—13 located in Vermont, two in Massachusetts, one in New Hampshire, and one in New York.

Bobolink (female) © Allan Strong

Successful Breeding Pairs and Fledglings

The project state coordinators surveyed the fields this summer to measure the success of the program for grassland birds. They estimated that there were about 294 pairs of Bobolinks on the enrolled fields. Using what we think is a conservative estimate of 2.79 fledglings per breeding pair, we estimate that 820 Bobolink young were produced as a result of the project’s 2017 efforts.

The number of fledglings nearly doubled from 2016 to 2017 even though the amount of protected acreage increased by about 20%. The huge increase in fledgling numbers is due in large part to one of the participating farms in particular, which consisted of 146 acres with many nesting Bobolinks.

The 2017 breeding season was also especially wet in many parts of the northeast. Increased amounts of rain typically means more invertebrates (e.g., insects) for Bobolinks to eat. This enhancement of breeding conditions could have influenced the higher number of Bobolink pairs and fledglings estimated this year.

What We Left On the Table

Another important aspect of this project concerns what we were unable to accomplish.

In 2017, we had to reject applications from 19 farmers who had submitted bids that exceeded what we were able to support from our donation pool. In other words, about 615 acres of offered habitat was lost because we needed more donations.

Of course, it’s wonderful that we succeeded in protecting 634 acres of grassland bird habitat! But the fact that we had to “leave on the table” a total of 615 acres—land that otherwise might have been protected—is a sobering thought. Remember, the more donations we collect, the more land we can protect from haying. We hope this reminder motivates new and previous donors alike to support the Bobolink Project in 2018.

In fact, contributions toward next year’s efforts can be made now—even while the birds themselves are busily heading toward South America! It’s never too early to make a donation, and your gift will be set aside for the 2018 nesting season.

To get the latest information follow us on Facebook, check out the website, or subscribe to our e-newsletter.

Hot Off the Press! State of the Birds 2017

Black-capped Chickadee may face an uncertain future in Massachusetts. ©Bill Thompson, USFWS

It is with great pleasure that we announce that our third edition of State of the Birds is now available. State of the Birds: Massachusetts Birds and Our Changing Climate focuses on what the future may hold for the breeding birds of Massachusetts as the climate continues to change.

Our last two State of the Birds reports, released in 2011 and 2013, compared the past to the present and identified changes in Massachusetts bird populations. The 2017 edition builds on that work by using science to predict the future.

Climate Matters For Birds and People

Most birds have limited distributions and, to some extent, climate controls the range of those distributions. To glimpse the future, we used a statistical analysis called climate envelope modelling.

Put simply, climate envelope modelling uses real bird and climate (various measures of temperature and precipitation) data to define the preferred climate of a bird species—their “climate envelope”—as it is today. Then the models substitute predicted values of the climate variables into the equation to project a bird’s climate envelope in 2050.

Using the results of our analysis, we assigned each of the 143 species analyzed a “Climate Vulnerability” score. There were some expected results and some surprising results. The overarching message was that birds are already feeling the effects of climate change and even some of our most common birds will probably experience further changes by 2050.

It’s In Our Power to Change the Future

While climate change can feel like an overwhelming problem, it is a problem that we can solve. Much like Scrooge in A Christmas Carol, we are being shown a possible future for our birds, and, just like Scrooge, we can take action today to change that future.

Visit the website, download the report, and share it with your friends and family. If we work together we can protect birds, wildlife, and ourselves.

Check out the article in the Boston Globe about the State of the Birds report.

Please consider supporting our bird conservation work by making a donation today. Thank you!

The Treasure Islands of Essex County

by Chris Leahy, Gerard A. Bertrand Chair of Natural History and Field Ornithology emeritus

Halfway Rock © Chris Leahy

There is something about islands. Their remoteness generates a certain mystique.  Even islands inhabited by people have an aura of “away-ness,” and uninhabited ones stimulate visions of hidden treasures of one kind or another. There is also an ecological significance to islands: their plants and animal communities are often different from those of even nearby mainlands; their isolation from other populations promote evolutionary change; and they may act as refuges for certain species because they are hard to reach by predators.

The coastal waters of Essex County from Nahant Bay to Cape Ann are dotted with more than 50 islands ranging in size from small rocky “skerries” which are nearly submerged at high tide to the well-wooded 83-acre Great Misery Island, two of them populated at least seasonally. In 2002 these were formally designated as the Essex County Coastal Birds Islands Important Bird Area*, due to their breeding populations of water birds that rarely nest on the mainland, including a number of rare or uncommon species.

Straitsmouth Island © Chris Leahy

This summer Mass Audubon’s Conservation Science Department, supported by a grant from the Nuttall Ornithological Club, and the help of several generous private boat owners began a survey of these islands with the following basic objectives:

  • Developing a comprehensive understanding of past and current bird survey efforts, data sources, and management activities.
  • Completing an assessment of current breeding bird activity on the islands.
  • Identifying existing stresses such as human use, presence of rats and other predators, vegetation change, and climate vulnerability.
  • Developing recommendations for future management in support of the breeding birds.
  • Raising public awareness of the importance of these islands through programming and networking with state and regional conservation entities.

The survey has already turned up a number of previously unrecorded breeding sites for wading birds and American Oystercatcher.  We will be publishing more detailed results in the near future.

 

*An Important Bird Area (IBA) is an area identified using an internationally agreed upon set of criteria as being globally important for the conservation of bird populations. The program was developed and sites are identified by Birdlife International based in Cambridge, England. Currently there are over 12,000 IBAs worldwide and 79 in Massachusetts.

 

Please consider supporting our bird conservation work by making a donation today. Thank you!

In the Field: Elm Hill

Scarlet Tanager © Ruby Sarkar

Past blog posts about our Elm Hill Sanctuary – a Foresters for the Birds demonstration site—have largely discussed the planning of forestry practices to manage and enhance bird habitat.  We kicked the project off last fall and winter, when our migratory birds were hundreds or thousands of miles away.  So, until spring arrived, we were not able to work much with the birds themselves.

A primary focus of the program is indeed birds and their habitat, so it is important to assess how effective any implemented forestry practices are.  This enables us to make adjustments to future management and maximize the benefit for birds.  We do this by monitoring how the birds respond.  At the earliest, on the ground management at Elm Hill will not happen until this coming winter.  However, we will need to compare the future bird response to current, baseline conditions.  A before-and-after, if you will.

Late May through early July is the ideal time to sample breeding birds.  Migration is over, so all the birds have arrived and will likely remain through the season.  They are on breeding territories and actively singing, which helps us to detect their presence.  During this time we can begin to answer some important questions.

For example, which species are present, and what are their general habitat preferences?  How many species are present?  How many individuals of each species are present?  Is a particular species absent that we may have expected?  Answering questions like these help us to characterize the current bird community.  Answering the same questions after habitat management will help us assess just how effective our efforts were.

Wood Thrush nest © Michael Ross

This is why, with the help of volunteers, Sheila Carroll and Mark Lynch, we recently completed a series of point count surveys at Elm Hill, all within areas that are slated for management in the near future.  With this initial information in hand, we will eventually see how things change after management, which is geared towards helping species in need of conservation action.  The next step will be to dig into the data, and some results will be shared in future Elm Hill updates.  Stay tuned!

Please consider supporting our bird conservation work by making a donation today. Thank you!

The Bobolink Project: 2017 season update

 

Male Bobolink © Allan Strong

The Bobolinks are arriving in New England and we’re finalizing the contracts with our participating Bobolink Project farmers. Thanks to the generosity of our Bobolink Project donors, we can protect over 630 acres of farmland this year! In return for some compensation, the Bobolink Project farmers will delay mowing on their hay fields until the young grassland birds have had time to fledge.

As in past years, we had more acres submitted into the project than we could cover with the available pool of donations. This year, we received 40 applications from farmers in Vermont, Massachusetts, New Hampshire, Maine, and New York—but our donation pool, as of April 1st (our deadline for donations), could cover only 17 of the farmers’ fields. This may sound disappointing, but we are able to cover 20% more acres this year at a lower per acre price of $60 (vs. $75 last year).

We are glad that the project is continuing to grow and look forward to welcoming grassland birds to fields enrolled in the program this summer and sharing our results with you. Keep up to date with The Bobolink Project by signing up to the mail-list or follow us on Facebook.

The Bobolink Project donations are accepted all year. The 2018 donation pool is already growing: since April 1st we have received over $8,000 in donations that will be saved for next year. Donate now to help us protect more acres and birds next year.

 

Eastern Meadowlark Citizen Science Project May 15–June 15

Eastern Meadowlark © Phil Brown

Calling all birders and bird enthusiasts!

We have launched a multi-year citizen science project to study Eastern Meadowlarks. The project aims to collect presence-absence data for Eastern Meadowlarks at randomly selected sites throughout Massachusetts from May 15 to June 15, 2017. Eastern Meadowlarks are in serious decline, both in Massachusetts and elsewhere in North America, and in order to better help this species we need to know more about their status in Massachusetts. The data collected through this project will provide valuable information about this species’ current distribution in the Commonwealth, and will form the basis for a better assessment of meadowlark habitat requirements and future conservation needs.

To get the information we need it is critical that we get help from citizen scientists. There are a lot of potential sites where Eastern Meadowlarks could be nesting, but there are only a few of us! The results of this work will help us develop models for use in evaluating potential sites that have not been visited.

Project data can be easily entered through the Anecdata website on a computer or in the field on a mobile smartphone device. The surveys required are simple and quick (10 minutes!) to do. We’ve provided our citizen scientist volunteers with “hotspots” where we specifically need a volunteer to do a meadowlark survey on three separate dates (with preferably at least 3 days in between each date) during the period of May 15 and June 15. Many of these hotspots will likely not have Eastern Meadowlarks, but knowing where Eastern Meadowlarks are not is just as valuable for scientific analysis as knowing where Eastern Meadowlarks are.

More information about how to get involved is available on the project website.

Not familiar with Eastern Meadowlarks? Check out our quick guide and listen to their song.

Questions? Contact us at birdconservation@massaudubon.org.

New Director of Bird Conservation: Jon Atwood

We are very pleased to announce the appointment of Jon Atwood as our new Director of Bird Conservation. Jon joined Mass Audubon as our Bird Conservation Fellow for grassland birds in 2014, and we were lucky to land him.

Jon received his Ph.D. from UCLA and has been a practicing ornithologist and conservation biologist for 30 years, specializing in integrating behavioral studies of rare and endangered bird species with habitat conservation planning.

While working at Manomet Center for Conservation Sciences during the early 1990’s he collaborated in the analysis of the first 30 years of Manomet’s landbird banding effort, and spearheaded federal protection of the California Gnatcatcher under the U.S. Endangered Species Act. From 1998-2011 he directed the Conservation Biology Program at Antioch University, New England, teaching classes in Ornithology, Ecological Research Design, and GIS, and mentoring over 70 graduate students working on various wildlife studies. During 2011-2013 he worked as Science Director at Biodiversity Research Institute in southern Maine.

As a Bird Conservation Fellow, Jon has focused on grassland birds, one of the most-rapidly declining groups identified in our State of the Birds reports. Jon led a review of grassland management on the sanctuaries, transitioned the Bobolink Project from an academic experiment to a dedicated bird conservation program, and co-authored our booklet on Best Management Practices for Nesting Grassland Birds.  In addition to that work, he has made important contributions to our upcoming State of the Birds report focused on climate change and to analysis of Coastal Waterbirds Program data.

In his new role, Jon will be responsible for setting the overall direction of our bird conservation program, continuing the current momentum on State of the Birds recommendations, leading the bird-related priorities of the Strategic Plan 2020 and the Master Plan for Conservation Science, and identifying and pursuing partnerships and funding opportunities to advance our work.

Breeding Bird Surveys going strong on Mass Audubon Sanctuaries

People have been observing and counting birds at Mass Audubon sanctuaries for as long as these properties have existed. In order to provide a focus for these observations and to insure that data are collected in a similar fashion, Mass Audubon initiated a program of breeding bird surveys on our sanctuaries in 2004 and has been carrying out these surveys ever since.  We use standard point count methodology where observers stand in the middle of a 50 meter (forests) or 100 meter (salt marsh, grasslands) radius circle for 10 minutes three times in June and record all the birds they see or hear.  The goal of the program is to track the birds that occur on our sanctuaries during the breeding season, determine the habitat characteristics that support different species of birds, evaluate the impact of any ecological management, and examine long term trends, such as those that might be caused by climate change.  Since 2004 staff and volunteers have logged over 30,000 records of birds in 315 counting circles on 48 sanctuaries. We typically carry out surveys at each sanctuary for three years every ten years, but at a number of sanctuaries, enthusiastic staff and volunteers have made observations every year.

We have recorded 149 species of birds during these breeding bird surveys of which 25 are considered conservation priorities.  Sanctuaries harboring the most of these high priority conservation species are Allens Pond, Wellfleet Bay, and Ipswich River.  Not surprisingly, sanctuaries in central and western Massachusetts, such as Pleasant Valley, Wachusett Meadow, and Rutland Brook and are notable for the number of wood warblers and other species associated with forest interiors that have been recorded in these sanctuaries.  Vegetation data we have collected on our counting circles have shown that many of these wood warblers species have an affinity for forests containing a high percentage of evergreens.

The breeding bird surveys will enable us to track changes in a number of birds that are conservation priorities.  Salt marsh sparrows are considered vulnerable to the effects of sea level rise associated with climate change.  After ten years of monitoring, the numbers of

Saltmarsh Sparrow by John Sill

Saltmarsh Sparrow by John Sill

saltmarsh sparrows seems to be holding its own at Allen’s Pond and Rough Meadows wildlife sanctuaries.  Data from other surveys carried out over a longer time period indicate a steady decline region-wide, so it is important for us to continue these surveys on our sanctuaries.  We are also tracking the responses of bobolinks to ecological management measures that create improved grassland habitats at Daniel Webster and Drumlin Farm.   Neotropical migrants whose numbers are declining nationally, such as wood thrushes are also priorities for our monitoring.  As permanently protected lands, the sanctuaries at Mass Audubon enable us to evaluate changes in the populations of these and other birds over long periods of time and allow us to take actions that will serve to maintain and enhance their populations in the future.

Foresters for the Birds Program comes to Elm Hill

Brown Thrasher by John Sill

Brown Thrasher by John Sill

Birds that breed in young or recently disturbed forests are a conservation priority in Massachusetts.  Sharp declines of these species, such as the Eastern Towhee and Brown Thrasher, have been linked to habitat loss due to changes in the frequency of these natural and anthropogenic disturbance regimes.  For example, fire and flooding have been suppressed, our familiar middle-aged forests are less susceptible to storm damage, and once common forestry practices have declined.

However, carefully planned forestry is one of the most effective ways to create early successional habitat, and the corresponding breeding bird species respond positively.  What’s more, some species of birds that breed in the more mature surrounding forests use these same young forests during the post-fledgling period – a time of high morality after young have left the nest.  Having this habitat in place also bolsters populations of mature forest breeders.

Mass Audubon’s Foresters for the Birds program responds to this conservation need.  The program provides technical assistance to private landowners who wish to manage their woods for important bird habitat, including the creation of early successional forest.

To further this conservation initiative, Mass Audubon will demonstrate these science-based habitat management techniques at our Elm Hill sanctuary.  Not only will this project provide crucial habitat for species in decline, but the site will also be used to educate professional foresters, agency staff, conservation professionals, the land trust community, our members, and the public at large.

Funded by the National Fish and Wildlife Federation, the project is in its initial phase.  The end product will be a 100 year plan to maintain a mosaic of forest successional stages, including various ages of young forest, and stands that will naturally progress towards old growth conditions.  In this initial phase, we are working with a Foresters for the Birds trained forester to map out the existing forest resources, and determine areas to be actively managed for bird habitat.  Other phases include monitoring birds to assess and adjust our management efforts, delivering public outreach, engaging the help of volunteers, and conducting studies of other taxa to inform management decisions.

This will be an exciting time of sharing and learning, and we hope you will follow along with the project as we post further updates.

Research Update: S4 – The Stellwagen Sanctuary Seabird Steward Program

 

Leach's Storm Petrel by John Sill

Leach’s Storm Petrel by John Sill

Seabirds constitute one of the most difficult groups of birds to systematically monitor, particularly when they are at sea and away from their breeding colonies.  Fortuitously, the inshore location and rich marine biota of the Stellwagen Bank National Marine Sanctuary provide a unique opportunity to support a long-term seabird monitoring program.

In 2011 Mass Audubon joined Stellwagen Sanctuary staff in initiating the S4 Program (Stellwagen Sanctuary Seabird Steward Program). The goal of this program is to systematically gather baseline data about seabird seasonal distribution and abundance within the Stellwagen Bank Important Bird Area (IBA).  By using sanctuary scientists and Mass Audubon personnel working in concert with trained volunteer observers, seabird data has now been systematically gathered for six years.  It is hoped that this information will increasingly inform seabird scientists and Massachusetts residents about how seabirds utilize local marine waters.  More importantly, the information will hopefully also help predict future environmental impacts possibly caused by climate change and its effect on the regional marine ecosystem.

Since the initiation of the S4 Program in 2011, regular seabird surveys have been conducted at least six times throughout the year along a 63 nautical mile-long transect located within the Stellwagen Sanctuary. Observations recorded during these surveys have collectively provided hundreds to thousands of sightings annually of a majority of the seabird species regularly utilizing the Stellwagen Sanctuary. In addition to the observers participating in the regular year-round systematic surveys, volunteer observers coordinated and trained by Stellwagen Sanctuary and Mass Audubon staff, have also been monitoring seabirds on public whale watching vessels the during the regular whale-watching seasons.

With concurrent regular monitoring efforts taking place in the sanctuary of other marine features including physical ocean characteristics, plankton, fish, and marine mammals, it is hoped that the information gathered will gradually help elucidate both short-term and long-term fluctuations taking place in seabird distribution and abundance that may possibly correlate with climate change. The S4 project represents a unique opportunity to allow citizen scientists to partner with both Mass Audubon and a federal agency to support local research and conservation efforts.  Future editions of The Warbler will provide highlights of some of the already noteworthy findings provided by the S4 Program.  For more information and volunteer opportunities with the S4 Program, contact Wayne Petersen, Director of the IBA Program at wpetersen@massaudubon.org.