It might not be right to attribute the presence of flyovers to HKBWS management in all cases, but flyovers should definitely be counted!
Since flyovers are counted on the HK list there is no reason not to count them at Long Valley.
Long Valley has some wonderful birds that are only flyover records. These include:
Dalmatian Pelican
Bean Goose (of however many taxa the Records Committee finally agree on)
Common Swift
Bonelli's Eagle
Black Vulture
Carrion Crow
Blue-tailed Bee-eater
Plus various species actively hunt over LV, including Peregrine Hobby, House Swift, Barn Swallow, Pale Martin, Asian House Martin, and in such instances there is a direct connection to the habitat through the food created either directly or indirectly at the site.
Cheers
Mike
Mike KilburnVice Chairman, HKBWSChairman, Conservation Committee