Re: [nfc-l] Catharus thrushes in weird places

2017-11-10 Thread Magnus Robb
Hello Olivier, I accept that to more experienced NA ears the Swiss call does not sit comfortably with Swainson’s Thrush. Bill Evans told me it ends at a frequency that would make it atypical for the species, and some clear modulation would also be desirable. However, the Chaffinch call you

Re: [nfc-l] Catharus thrushes in weird places

2017-11-10 Thread Magnus Robb
Hello Olivier, I accept that to more experienced NA ears the Swiss call does not sit comfortably with Swainson’s Thrush. Bill Evans told me it ends at a frequency that would make it atypical for the species, and some clear modulation would also be desirable. However, the Chaffinch call you

Re: [nfc-l] Catharus thrushes in weird places

2017-11-09 Thread Olivier Barden
Magnus, The Swiss recording does not sound like a Swainson's Thrush to me, other than superficially. The spectrographic signature of this call doesn't look right, either. Could this simply be a Chaffinch? Its quite low-pitched, and there seems to be a bit of echo. I rarely hear finches at night

Re: [nfc-l] Catharus thrushes in weird places

2017-11-09 Thread Olivier Barden
Magnus, The Swiss recording does not sound like a Swainson's Thrush to me, other than superficially. The spectrographic signature of this call doesn't look right, either. Could this simply be a Chaffinch? Its quite low-pitched, and there seems to be a bit of echo. I rarely hear finches at night