Immigration Laws chasing away immigrant workers

The Associated Press is reporting that Gov. Bill Ritter says fewer immigrant workers are coming to Colorado because of tougher state laws.
AP reports that Ritter admitted that immigration laws passed in 2006 have hurt Colorado's ski and hotel industries by making it harder to find enough seasonal workers.
and agricultural employers along the northern Front Range aren't finding as many immigrant workers as in the past.
Why wasn't construction mentioned?
With unemployment among Coloradans running 6.1%, are the locals being referred to fill those jobs? Are Coloradans willing to work as hard at the immigrant workers did?