Some good bats around Calshot, with Common Pipistrelle, Soprano Pipistrelle, and Nathusius' Pipistrelle recorded,...
Some good bats around Calshot, with Common Pipistrelle, Soprano Pipistrelle, and Nathusius' Pipistrelle recorded, plus a probable Leislers' Bat. Also, during the daytime, some good flight views of Migrant Hawker Dragonfly.
Originally shared by Peter Jones
Ran the Bat detector overnight in the Calshot area. The detector was overlooking the Solent, and conditions were quite mild. I know there are Common and Soprano Pipistrelle in the area, and both of these species were recorded during the Evening, but later, two recordings looked pretty promising.
The first, with a peak frequency of 35-36KHz matches Nathusius' Pipistrelle quite nicely. Only one call was close enough to show the typical hockey stick call shape, but the peak frequency and call lengths of all 4 calls looked good. Nathusius' Pipistrelle, is a highly migratory species which passes thru the UK each Autumn.
The second, peaking in the mid-20's, looks good for Leisler's Bat, but some caution is needed with the often similar sounding Noctule. Although in such an open environment as over sea, you would expect Noctule calls to be more of the familiar Chip-Chop, and frequencies around 20KHz. Again calls are faint, but the parameters look good. This one will have to go down as a "probable"
Originally shared by Peter Jones
Ran the Bat detector overnight in the Calshot area. The detector was overlooking the Solent, and conditions were quite mild. I know there are Common and Soprano Pipistrelle in the area, and both of these species were recorded during the Evening, but later, two recordings looked pretty promising.
The first, with a peak frequency of 35-36KHz matches Nathusius' Pipistrelle quite nicely. Only one call was close enough to show the typical hockey stick call shape, but the peak frequency and call lengths of all 4 calls looked good. Nathusius' Pipistrelle, is a highly migratory species which passes thru the UK each Autumn.
The second, peaking in the mid-20's, looks good for Leisler's Bat, but some caution is needed with the often similar sounding Noctule. Although in such an open environment as over sea, you would expect Noctule calls to be more of the familiar Chip-Chop, and frequencies around 20KHz. Again calls are faint, but the parameters look good. This one will have to go down as a "probable"
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