ML620329821
Contributor
Date
Location
- Age
- Not specified
- Sex
- Not specified
- Sounds
- Song
- Playback
- Not specified
Media notes
Quiet signal, lots of traffic noise & cricket noise. 0747.
Observation details
This is a minimum count of the birds I heard (15) and saw (1). While this is the highest number of birds recorded at this hotspot, I feel confident that each bird I heard was unlikely to be a double-count as I was taking measures to avoid this. I didn’t measure exact distances between singing birds, but there were several times when I did not count additional birds I heard singing because I felt I was not far enough away from a previous singing location to definitively rule out that it wasn’t the same bird. There were also several instances where I could hear two birds singing at the same time. At one point I could see one bird while still hearing another singing. Since I was there primarily to record Grasshopper Sparrows, I was often crouched low to the ground and silent for 15-20 minutes at a time. There was also very little foot traffic on the trail that morning. I think this allowed me to hear more birds than I might have otherwise if I had been moving through more quickly. There were also at least 2 times when after finishing a recording I took off my headphones and could hear a new bird singing in the distance from a new location. Here are the approximate locations of the birds I counted. I heard birds both on the inner portion of trail inside the loop, and from areas outside the loop. - Trail entrance, eastern side of loop, inner area (1 singing) - Northern side of loop, inner area (6 singing, 1 seen) - Western side of loop: outer area (3 singing), inner area (2 singing) - Southern side of loop, outer area (1 singing), inner area (2 singing) Birds of the World lists territory sizes for Grasshopper Sparrows varying between 0.37 to 1.8 ha. The area inside the loop is roughly 35 hectares, and 4 of the birds I heard were not even in this inner area, so I think it is possible that this many birds could be present.
Technical information
- Recorder
- Sound Devices MixPre-3 II
- Microphone
- Sennheiser ME 67
- Accessories
- Original file size
- 23.31 MB