In Summer 2014 I’d finally bit the bullet and bought a Telinga Universal MK2 parabolic dish reflector, a piece of equipment that I’d been umm’ing and ah’ing about for years. Though a bit pricey in my opinion, this is a well-built, lightweight parabolic with the added benefits of it allowing you to use your microphone of choice and its relative portability due to the dish itself being foldable.
I’m using an MKH8040 in the Telinga, guaranteeing a flat frequency response, high sensitivity & low noise. It being a cardioid mic it is relatively susceptible to handling noise, so some practice is required using this in a parabolic as a lot of this kind of recording is handheld whilst tracking your subject (like flying birds for instance). The above sound file is an example of tracked recording, as these are the calls of common terns that were flying over my head and around me, at distances ranging from ~20 to 5 meters from the mic. They seemed to be playing a game of chase with each other, which I don’t know if it’s a mating ritual or simply them having fun.