Tourist landings at penguin rookeries have become increasingly popular and operators typically offer several landings on a single voyage.
The recently increased numbers of visitors to concentrations of wildlife, and to penguin rookeries in particular, have heightened concern over this issue.
However, it is still not known how important wind blown nutrients from heavily manured localties such as penguin rookeries and seal wallows are for the inland vegetation.
It is not always rookeries that are concerned.
Those very areas have most wildlife, such as penguin rookeries, sea bird colonies and seal breeding areas.
They gradually dwindle down by way of boarding-houses, lodgings, and single rooms let off, and ultimately become slums and rookeries.
The rookery which existed there has been demolished.
For thinning out rookeries, however, a semi-automatic 22 ought perhaps to be allowed.
