[nfc-l] Calls of Crane flocks migrating at night

Hello all A colleague and me are dealing with the migration of Cranes Grus grus through the region of Genoa (NW Italy). We also made some recordings of flocks calling during their migration at night along a stable direction, and at a fixed station. I am wondering if some abundance

[nfc-l] Calls of Crane flocks migrating at night

Hello all A colleague and me are dealing with the migration of Cranes Grus grus through the region of Genoa (NW Italy). We also made some recordings of flocks calling during their migration at night along a stable direction, and at a fixed station. I am wondering if some abundance

[nfc-l] Zoom H1 recorder: can I charge it via a USB Power Bank?

Hello all I am new to the list and am interested in night call recordings. I use a couple of Zoom H1 recorders with a pair of Primo EM 172 microphone capsules. I'd like to replace the AA battery with a power supply from an USB Power Bank (5V): does anyone have experience of this kind of supply?