White-tailed Ptarmigan: Ghosts of the Alpine TundraBig Earth Publishing, 2007 - 134 σελίδες Celebrating the white-tailed ptarmigan in a month-by-month photographic essay, Joyce Gellhorn reveals the elusive habits of the only bird capable of surviving on the harsh, alpine tundra of the Rocky Mountains throughout the year. Discover an appreciation and awe for the adaptations of a species living on the edge, a species that contends with bitter cold, fierce winter storms, and short breeding seasons. Because they live in a precarious balance with their environment, white-tailed ptarmigan may well serve as a barometer to the health of our planet in terms of global warming. Book jacket. |
Περιεχόμενα
January | 11 |
March | 25 |
September | 34 |
PTARMIGAN MOLT AND ESTABLISH TERRITORIES | 39 |
COURTSHIP RITUALS AND NESTING | 53 |
August | 70 |
SHORTER DAYS SIGNAL A CHANGE OF SEASON | 89 |
November | 107 |
Epilogue | 123 |
Συχνά εμφανιζόμενοι όροι και φράσεις
activities allowed alpine appear approaches areas August bands become begin bird's birds body breeding brood brown changes chicks Clait Clait Braun cold color Colorado completely continued courtship covered developed display early edge eggs elevations enable establish eye comb feathers feed feet female flock flowers followed ground grow habitat hatch head increase incubation July June Kathy keep late later leaves living located look male ptarmigan marks mating meadow migrate molt Mount Evans move nature nest observe pair Pass Peaks period placed plumage population primary protected range remain researchers Road rock Rocky Mountain roost season seemed September signs sits skied snow spring started stay summer surface survey tail territory tracks Trail Ridge Road trees tundra usually vegetation walked warm watched week white-tailed ptarmigan willows wind wing winter young