How wide is the entrance to the stairwell? Could you add a ramp at the sides so the frogs have a chance of getting up without inconveniencing the other people? It would also enable people with bikes to wheel them in easier (if any of the residents store bikes in their flats).
Is there any group/person who represents the views of the residents of the building(s)? Perhaps write a letter to them with the best solution to the problem you think of and let them sort it out?
Otherwise I would probably devise some form of frog capture device, so I could quickly and cleanly remove frogs (alive or dead). Some form of hinged box controlled by a line on a pole.
Edit: Err, read the frequency. Once every 2 weeks doesn’t justify taking a tool with you, Probably just take some gloves and rescue the frogs.
How wide is the entrance to the stairwell? Could you add a ramp at the sides so the frogs have a chance of getting up without inconveniencing the other people? It would also enable people with bikes to wheel them in easier (if any of the residents store bikes in their flats).
Is there any group/person who represents the views of the residents of the building(s)? Perhaps write a letter to them with the best solution to the problem you think of and let them sort it out?
Otherwise I would probably devise some form of frog capture device, so I could quickly and cleanly remove frogs (alive or dead). Some form of hinged box controlled by a line on a pole.
Edit: Err, read the frequency. Once every 2 weeks doesn’t justify taking a tool with you, Probably just take some gloves and rescue the frogs.