It is unlikely that anyone will post known localities of Goshawk on a public forum (at least I hope!), but I hope the below information is of assistance more generally - this is a brief overview of (hopefully useful) information based on my experience having grown up in the Brecks and now living in the Forest of Dean:
1)
Choose a suitable vantage point: Elevation is key - looking across an area (e.g. the side of a valley) and over blocks of woodland is best, however, looking down a valley where woodland is present on either side is a good second option. In lowland areas ideally you are after a matrix (where possible) of forestry, open areas and broad leaved woodland. Upland areas with blocks of Sikta or similar forestry will also be productive. Ideally you want as far reaching views as possible to maximise chances, but if you are unfamiliar with the species, it is best to cite your watching point within 1 - 2km of these areas.
2)
When to look: Goshawk activity peaks from mid-Feb to mid-March when birds are displaying, however juveniles can be seen during July, and again from late October, especially once they've been kicked out of their parents territory. Woodland fringing farmland seems to be utilised in the winter period, particularly by immature birds. Birds can begin
displaying as early as end January if the weather conditions are suitable.
3)
Timing and weather: Most activity occurs between 09:30 and 11:00am during courtship/territory establishment. If the weather has been poor (rain/fog/high winds) for a few consecutive days, birds will utilise breaks in the weather later in the day. The optimal weather seems to be 0/8 to 6/8 Oktas, with Beaufort F2 - F5 (occasionally F6), dry with a temperature above 9°C.
Hopefully this helps as a starting point, and two final considerations - keep at least 500m away from woodland/woodland edges if you think Goshawk (or other raptors) may be breeding to reduce risk of disturbance, and if you are lucky enough to find Goshawk, it is advisable not to publicise the location (though your local county recorder would probably appreciate the information!).
