building dove dovecot dovecote germany historic history house pigeon quedlinburg bird black blue chimney crow perch raven roof Rook sky ascocarp ascomycete basidiocarp basidiomycete biology cell fungus magnification microscope sporocarp access accessibility appliances availability available challenged communication disability disabled entrance free hall handicap handicapped helpful public red telephone wheel chair wheelchair close drop flower leaf macro margerit Nyberg rain summer UP water England habitat log lumber nature pile stack Stump Sussex tree wood branch branches brown collage creative flowering plant forest green leaves pineapples plant Soil sticks still life