Two juvenile peregrine falcons that made a home nesting atop Regina's city hall suffered traumatic injuries while learning to fly this week.

On its Facebook page, the City of Regina stated they were both female juveniles and one had to be euthanized due to a broken back.

The other suffered a dislocated elbow which rendered it incapable of sustained flight. 

The surviving falcon will be sent to a facility in Alberta where it will become a demonstration bird.

The falcon parents, Jasper and Andamooka, have been sighted with one juvenile bird at various locations downtown. 

The city says while it is unfortunate one is dead and another injured, it does increase the survival chances for the remaining juvenile birds.

Juvenile peregrine falcons have a 50 to 70 per cent mortality rate during their first year of life, largely due to accidents, predators or starvation, according to the city.

If they survive the first year, many of them live long lives — 12 years on average. 

The mortality rates of falcons living in human environments are similar to those living in the wild.