Park Monitoring Instructions
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| General |
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Welcome to the Tucson Bird Count's Park Monitoring Program.
The Park Monitoring Program monitors birds in particular parks,
washes, or other areas of interest. Because the goal is monitoring
a particular area, sites will be spaced more closely than in
TBC "Routes", and more effort should be spent birding
in-between sites. Park monitoring may also involve larger groups
of people. In surveying a park, your group will do two main
things:
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- Conduct a series of point counts and/or transects at set
locations.The number of counts will vary, depending on the
size of the park. Point Counts and Transects are
standardized and can be compared easily from year to year.
- Bird the area, recording all species seen or heard. These
Supplemental Observations will result in a more complete
list of the species present in a park and their estimated
abundances.
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| Point Counts and Transects |
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Which to do: Point Count or Transect |
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Point Counts and Transects are two standard techniques for
counting birds, and are useful for different situations.
In the TBC, a Point Count involves standing in one spot for
5 minutes, counting all birds seen or heard at any distance.
Point Counts are useful when many of the species observed are
vocalizing (e.g., during breeding season), or when moving through
an area isn't possible (e.g., thick vegetation without a path).
Point Counts are also more easily compared to the 700+ other
Point Counts conducted in the TBC's Route Program every Spring.
A Transect involves walking a fixed distance (in the TBC, 200m)
in a fixed amount of time (10 min), recording all birds seen
or heard. Transects are useful when visibility is limited (for
example, along a path through dense vegetation). They are also
appropriate for situations where more birds are seen than heard
(shorebirds & water birds any time of year, most other birds
outside of the breeding season), or when birds aren't observed
unless flushed by your movement (grassy areas).
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Selecting Sites |
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If the park has been surveyed in previous TBC's, use the same
sites. If not, you'll choose the sites for Point Counts, and
start and end points for Transects. Find a map of the park which
includes as many details as possible, including the park boundaries
and such things as trails, ponds, washes, and buildings. This
map should have a scale; it's important that you not place the
sites too close to eachother. Aerial photos are ideal for this
purpose (ask us...chances are we can provide you with one).
Place Point Counts and/or Transects throughout the area. Use
your knowledge of the area, and the above description of the
two methods, to decide which is most appropriate for each part
of the area. Future counts will take place at the exact same
sites, allowing comparisons over time. Try to cover as much
of the area as possible while still placing sites in accessible
areas of interest. If the entire area can't be surveyed, give
priority to those habitats which are scarce in the Tucson area
or are important for birds. At the same time, you want to minimize
your chances of counting the same bird twice.
Maintain about 250m between Point Counts. You might think of
each site as the center of a 250-m wide circle, and don't allow
circles to overlap. In some areas it can be difficult to keep
Transects this far apart. Thus, the endpoints of transects can
be closer, but don't allow them to overlap or cross.
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Conducting Point Counts |
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Only one person should count birds for a particular point count.
If possible, individual Point Counts should be conducted by
the same person during each survey. Note that this allows different
individuals to conduct different point counts within a park,
which may be useful for larger parks.
Point Counts should be done from a stationary point outside
of a car. Count every bird seen or heard by during a 5-minute
period. Birds any distance from the observer should be counted.
However, do not count birds that are known or strongly suspected
to have been counted at a previous site. For large groups of
birds, estimate the number. Do not exceed 5 minutes because
you are sure a certain "good bird" is there and not calling
— valid negative data are as important as positive in this survey.
If you observe, but do not identify, a bird during a point count,
it's OK to spend time after the point count working on the ID.
Record such birds as being in the point count. Birds observed
outside the 5-minute period should be recorded as Supplemental
Observations (see below). Don't use any method of coaxing birds
("spishing", tape playbacks). It's important that all point
counts be done consistently to produce reliable results.
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Conducting Transects |
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From the start point, walk the 200m Transect at a pace that
will get you to the end point in 10 minutes. As you walk, stop
as necessary to identify birds, scan, or listen. Record birds
as you would for a Point Count, taking care not to count birds
you've already counted. |
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| Supplemental Observations |
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Spend time birding areas in-between, or not otherwise
covered by, point counts. Record individuals of all species seen
or heard in the "Supp." column for the site or transect
that is physically closest. If you later observe a "Supp."
when conducting a nearby Point Count or Transect, erase it from
the "Supp." column and place it in the appropriate Point
Count or Transect column. Anyone in your group can report supplemental
observations. If beginners or less-experienced birders are in
your group, have all observations/data verified by more experienced
birders (e.g., those conducting point counts) to ensure the accuracy
of results. |
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