Drones Harass Nesting Bald Eagles

Nesting Bald Eagles have been harassed in recent weeks by a drone. In the most recent incident the drone was purposely flown near a nest in Anne Arundel County, frightening the incubating adult such that it fled the nest and flushing the other bird from its roost. This also occurred twice last year in Garrett County.

Maryland Bird Conservation Partnership (MBCP) Executive Director, Chris Eberly, spoke with WNAV’s Donna Cole for her program 1430 Connection about the most recent incident.

Although flying near eagle nests may not violate FAA regulations, it’s against the law to disrupt nesting native birds (Migratory Bird Treaty Act (MBTA) and Bald and Golden Eagle Protection Act).

Please consider contacting your state representative if you agree that irresponsible UAV usage is a threat to cherished Chesapeake area resources. If this type of behavior persists, new legislation may be needed with enhanced penalties for the use of a drone in the commission of another crime.

Red Knots plummet by 25% in a year in Tierra del Fuego

For a while, it looked like they might actually be in recovery. But this year’s census of the American subspecies, the rufa Red Knot, found that numbers have plummeted to an all-time low. The likely cause? Food shortages in Delaware Bay, a crucial feeding stopover site on their migration.

This January, surveyors flying over Tierra del Fuego, South America, beheld a sorry sight: the view from the helicopter windows told a dramatically different story to the same time last year. It wasn’t hard to see that the number of rufa Red Knots Calidris canutus overwintering at this site had fallen dramatically – to a shocking 9,840 birds. This is a 25% decrease on the number recorded in January 2017 (13,127), marginally the lowest recorded since surveys began (the previous low was 9,850 birds in 2011).

And it had all been going so well. The conservationists of the Western Hemisphere Shorebird Reserve Network, who have been conducting this ongoing study, had been quietly hopeful that the promising increase of 15% between 2016 and 2017 would continue. But, sadly, this was not to be. For such a small population, and one that tends to stick together and move as one major flock, it’s not surprising that one setback will impact them all. And that’s what’s happened in this case.

Survival of the fattest

To pinpoint the cause, we need to travel over 10,000 km to Delaware Bay on the Atlantic coast of the USA – which is actually a stopover point on the rufa Red knot’s migration back from Tierra del Fuego, to its Spring breeding grounds in the Arctic.

To find out more….

One in eight bird species threatened with extinction, global study finds

News via the Guardian:

Report on the state of the world’s birds reveals a biodiversity crisis driven by intensive farming, with once-common species such as puffins and snowy owls now at risk.

One in eight bird species are threatened with global extinction, and once widespread creatures such as the puffin, snowy owl and turtle dove are plummeting towards oblivion, according to the definitive study of global bird populations.

The State of the World’s Birds, a five-year compendium of population data from the best-studied group of animals on the planet, reveals a biodiversity crisis driven by the expansion and intensification of agriculture.

In all, 74% of 1,469 globally threatened birds are affected primarily by farming. Logging, invasive species and hunting are the other main threats.

“Each time we undertake this assessment we see slightly more species at risk of extinction – the situation is deteriorating and the trends are intensifying,” said Tris Allinson, senior global science officer for BirdLife International, which produced the report. “The species at risk of extinction were once on mountaintops or remote islands, such as the pink pigeon in Mauritius. Now we’re seeing once widespread and familiar species – European turtle doves, Atlantic puffins and kittiwakes – under threat of global extinction.”

Emerging from the Silent Majority: Documenting Rarities

By Claudia Wilds and Robert Hilton

Ever found a rare bird? What did you do? Many people do nothing at all, perhaps thinking that no one will believe them. A minimal step, if you are birding in a park or refuge, is to put it on the wildlife sighting sheet. That way somebody else might see the bird too, and report it to a birding hotline or take notes on it and send them to the appropriate rarities committee. Or you might call a knowledgeable birder you know and let that person decide what to do. With a little more self-confidence you might call the nearest birders’ hotline yourself and subject yourself to questions by the operator.

Making contact with anybody on this subject takes courage, unless you are such a novice that you expect your report to be accepted without question. With more experience you know that your identification, like that of any other birder, will be challenged and you will have to defend it. (After all, rare birds are not supposed to be here. The odds are good that you have confused it with a species that is supposed to be here, perhaps one in a plumage with which you are unfamiliar.) If you are not convincing, your report may be met with skepticism or incredulity, and you may decide never to report a rare bird again.

That is a pity, because any active birder will come across several–perhaps many–rare birds that should get into the record books. Quite aside from the pleasure of providing excitement for fellow birders and getting some credit for it, the real value of reporting a rarity is the contribution to scientific knowledge: increasing the understanding of patterns of vagrancy or documenting the first stages of expansion of a species’ range or (sadly) the last records of a disappearing species. The more information contained in a report, the more value it has to people interested in distribution and conservation. Detailed notes can demonstrate to future researchers that a certain species actually occurred at a given place and time. A report not accepted immediately could be validated at a later date as additional information about field characters or distribution patterns accrues.

There is a myth that the only birders with credibility in a state are a group of elitists who believe all of each other’s reports and none from anybody else. Not true–everybody runs into skepticism, and everyone can learn to write an acceptable report. If there were an insiders’ club it would be wide open for membership. Anyone could join who repeatedly reported the rarities he or she discovered and had at least some of them confirmed by experienced birders. Experienced observers show the patience to spot easily overlooked birds (rare ones that look a lot like common ones), and make a conscientious effort to submit documentation on rarities to a local records committee.

What is good documentation? A dead bird taken to a natural history museum and stored there as a prepared specimen, tagged as to date, location, and finder is an almost impossible and usually undesired solution for most birders. Next best is a photograph or series of photographs showing all the details needed to identify the bird conclusively. Because most birders don’t have cameras or long lenses, and even those who do can never be certain that the photographs will show everything, or will even come out right, the basic requirement for every report is a set of notes taken in the field. Whether you just want to get your bird onto a rare bird alert, or you want to establish a first state record, you need to have a notebook and a pen or pencil in your pocket whenever you go birding.

So you see the bird. Then what? Look at it closely, not taking your eyes off it until you have told yourself (put into words in your head) every feature you can see (and hear, if you are lucky). This includes not only the diagnostic field marks but the details that paint a verbal portrait of that individual. Then take pictures, if you have a camera, or write down your mental words, or both (taking the pictures first). If you can sketch the bird, do so. Even if you are hopelessly inept as an artist, you may be able to draw a wing or tail pattern or a bill shape or pattern. If similar birds are in the vicinity, write down its differences from them. When you have run out of things to say about its appearance, record its behavior, including posture, and try to transcribe or describe its vocalizations.

If you are with other birders, do not assume that they will write notes, though you might encourage them to do so. If several of you are taking notes at the same time, the ideal procedure is for each person to write details without influencing the others. A suggestion to look at the eye-ring, for example, helps focus attention on a potentially key identification mark, whereas a statement that the eye-ring is quite striking may influence the content of the documentation. Similarly, consulting references during the note–writing process can suggest the presence of features that are not actually present. Resist the temptation to record what you know is there. In a group situation, different observer’s notes will be different. Do not worry about missing a detail that someone else recorded–your notes will have value as an independent document.

At any time the bird may leave you, of course. That is why it is important to verbalize right away what your eyes see. Most of us do not have a photographic memory that would enable us to reconstruct later the precise details from a general impression.

The points that can wait until after the bird has gone are the notes on your distance from the bird, the relative position of the birds, the sun, and you, the habitat, exact location, time and date, the optics you used, the names of your fellow observers, and your previous experience with the species.

The hardest habit to break is looking at your field guide when you should be looking at the bird and writing down what it looks like. Force yourself to leave the books alone, at least until you have written the best description you can. If you add anything to your notes after consulting field guides, indicate which features were prompted by looking at the books (and specify which books).

Your notes may be a disorganized mess, but they are the core of your documentation. You will probably want to write up a neat, coherent version of them. Just don’t leave out any detail. (Do make a note of features not observed, though, if you are aware of them.) Armed with notes (and photos, if you have them), you can answer any challenger’s questions with confidence and accuracy, within the limits of what you were able to observe.

You will find this whole procedure not nearly as intimidating as it sounds if you prepare yourself for an unexpected rarity in two ways. First, memorize the terminology describing the parts of a birds in one of your field guides. In the introductory section they all have a bird or two with the parts labeled. Most of the guides supply a simplified terminology suitable for beginning users. In our opinion, the most complete, precise and useful set of terms is found inside the front and back covers of Kenn Kaufman’s Advanced Birding (Houghton Mifflin 1990). Second, after learning the terminology, practice on the local birds in your yard or neighborhood, and force yourself to describe one bird every time you go out birding ( a songbird one day, a raptor the next, a shorebird or waterbird the next, and so on).

If you have documented a species on the Maryland/District of Columbia Records Committee’s list for review, send the secretary a photocopy of your field notes (as well as a tidied up version, if you like) and copies of photos, if any. The neat version need not be a well-written narrative suitable for publication. If the subject is worthy of an article in Maryland Birdlife, you can later add colorful prose that evokes the whole experience or provides information about the distribution of the species in the region, but only the details about the bird and the observation are important to reviewers of the record.

To illustrate what serious efforts at documentation may look like and how the committee analyzes them, we present and critically assess two records that have been reviewed. Read the reports and decide how you would have evaluated them before finding out what the committee decided and why. Think carefully about whether each observer included all the information you need. Did they eliminate the possibility that a different species might have been under observation? Can you visualize exactly what the bird looked like? If not, what is missing from the description? Does that make a difference in your decision?

Example 1 — Lark Sparrow
Example 2 — Franklin’s Gull

[See article]

The Lark Sparrow report, though terse, was complete, and it convinced all members of the committee of its accuracy on its first circulation.(1) As one member wrote:

The combination of features is compelling: white belly, black breast spot, black whiskers and eyeline, rufous cheeks and head stripes, lack of wingbars, white in the tail. Bluebird size is good, too.

The head sketches and the precise details of location, time, length of observation, light conditions, distance, weather, and optics in addition to the details of appearance and behavior make this a model record.

An adult Lark Sparrow, of course, is not a difficult bird to identify, but the exactness with which this individual was described by [a Maryland birder] exemplified the kind of verbal portrait that answers the questions that any report of a rarity raises.

The Franklin’s Gull record, though much longer, is not nearly so detailed in respect to essential information. On the first circulation most committee members voted for it, but questions and doubts emerged from the comment. I am not entirely convinced that the bird was not a Florida first-winter Laughing Gull. These birds aren’t much different in size from a Franklin’s Gull. I am curious why nothing about the wing pattern was noted: no conspicuous white marking? Was the bird extremely worn, or molting? Why was it considered an adult? Could it have been in first-summer plumage? The description does not describe the hood clearly as more extensive [than] that of the laughers, which would be showing more variation in head pattern at this time. The white apical spots on the primaries should be larger than those of the laughers.

On the second round the vote changed to 4-4. A new committee member noted: Diagnostic field marks are lacking. The shorter legs and slighter bill would be expected of a bird 20 percent smaller, and size alone cannot be convincing for a gull of unknown sex. There is much more variability in size among Laughing gulls than between laughers and Franklin’s. The eye ring and hood remnants could belong to either species. The birds were watched in flight as they approached the island, but no one at the time notices the characteristic wing pattern of Franklin’s.

With half the committee still supporting the record, it was given a third chance. This time the number of negative votes reached five, and the record was assigned to the not accepted category. The cumulative doubts about whether the information that had been provided (or not provided) on the size, head pattern, and wingtips eliminated Laughing Gull outweighed the case for Franklin’s Gull, with which the details were certainly compatible.

This report was submitted by a Records Committee member. Although he was ( or should have been) aware of the level of detail needed for acceptance, anyone can forget to put in some important facts, especially if no field notes are taken on the spot. We don’t know if that is what happened in this case. What we do know is that no copy of any field notes was submitted with the narrative and that none of the other three observers sent descriptions to the Records Committee. The failure of this record may have been a problem only of exposition, but there is no way to know whether the observers talked about wing pattern or even thought about this key character.

Compare the polished after-the-event presentation of this report with the immediacy of the Lark Sparrow notes and see for yourself what was missing in one and present in the other. Then make a habit of taking your pen and notebook into the field and get your birding friends and companions to do the same. Remember that photocopies of everybody’s notes (or even those of a single observer) scribbled on the spot are more likely to provide the committee with the observations it needs to make its decisions than an account based on a recollection, even one just a few hours old. Above all, remember that your reports are invited and appreciated, that the most well-known birders have had (and continue to have) reports not accepted, and that the most unknown birders have had reports accepted. The only rarity sightings that have no chance at all of becoming records are the ones kept secret from the Records Committee.

(1)The voting procedure of the Maryland/District of Columbia Records Committee is as follows: to be accepted or rejected on the first round, the votes on a record must be unanimous. To be accepted on the second round, they must also be unanimous. Records with up to four negative votes go on to a third round. On the third round a record is accepted if it receives no more than one negative vote. Records with two negative votes (but no more) on the third round are discussed in a committee meeting and later given one last chance to be accepted, with one negative vote allowed on the fourth round.

Maryland Birdlife
March 1992
Volume 48, Number 1
Page 30