This is ironic.
$1:
More than 40,000 Irish workers poured into Canada in 2010-11 after economic calamity took down the so-called Celtic Tiger. In Toronto alone, a special Irish-Canadian immigration centre is being launched to help the more than 10,000 who arrived on working visas. If the past is any judge, this kind of out-migration from Ireland may be just a modest beginning.
There was a big influx of Irish into Canada in the late 1840's as a result of the Potato famine. I believe that the populaton of Toronto rose from 20,000 to 47,000 in one year (1847) on the strength of this.
I think these shifts are good. Aviods stagnation and mini-colonies getting established all over the place.