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Subject:

Cave Swallow documentation

From:

Phil Davis

Reply-To:

Maryland Birds & Birding

Date:

Sun, 5 Dec 2004 19:09:25 -0500

Hi MD Osprey:

A reminder ... as of now, there are no accepted records for Cave Swallow in 
MD (or DC). Prior to this year, there have been only three reports of Cave 
Swallow in Maryland. One was not accepted (1996) and the other two (2002 
and 2003) are currently under review by the committee. You can find more 
information on these earlier reports in the copy of our MD database that is 
posted on the MD/DCRC web pages, on the MOS web site.

I am receiving photos and reports on some of the sightings, but I don't 
know yet if all sightings will be documented. So, observers are reminded to 
document Cave Swallows whenever and wherever they are found.

"Invasions" like this always create an awkward situation. For example, MD 
had not had any White-winged Crossbill reports for over 15 years, so in 
1996 the committee added the species to our review list; the very next 
winter (1997) we had an invasion and they were everywhere.

Here are a few tips on sighting documentation ...

1. Make field notes or sketches AS SOON AS YOU CAN after the sighting. Time 
erases memory. State in your report when you made your raw notes and when 
you wrote-up your report. (You may want to submit a copy of your raw notes.)

2. Try to make field notes (and sketches) BEFORE consulting a field guide, 
and be sure to state this in your report. Studying a field guide and then 
writing a report or making a sketch can unknowingly influence your reporting.

3. DESCRIBE THE ENTIRE BIRD. With rarities, sometimes observers just focus 
on the "key" field marks and ignore the rest of the bird. The voting 
committee members need to be able to construct a clear vision of the bird 
you are describing in their mind. This typically starts with the size of 
the bird, what other birds it is similar to, which family the bird is in, 
and includes all aspects of the bird.

4. If you cannot take photos, MAKE A SKETCH. Even if your artistic ability 
is very lacking (like mine), you can still covey much information about a 
sighting and eliminate many ambiguities with even a rudimentary sketch.

5. Finally, the committee needs to be able to ELIMINATE SIMILAR SPECIES. It 
is most helpful if you can write-up specifically how you eliminated similar 
species, so that the committee can follow your logic. This part of a report 
is sometimes prepared or augmented after a sighting in a post-observation 
or "analysis" section of your report that includes research from field 
guides and other reference material.

If you have never documented a rarity, please give it a shot; typically it 
will improve your observational abilities.

On our MD/DCRC web site (URL below), there is related information on the 
documentation process, including some documentation checklists and articles.

Thanks.

Phil



===================================================
Phil Davis, Secretary
MD/DC Records Committee
2549 Vale Court
Davidsonville, Maryland  21035     USA
301-261-0184
mailto:[log in to unmask]

MD/DCRC Web site:  http://www.MDBirds.org/mddcrc/rcindex.html
===================================================