The Hula Valley in northern Israel is where ornithologists and “twitters” watch hundreds of bird species rest during their winter migration. Scientists estimate that some 42,500 Gray cranes stayed this winter in the Agamon Hula Lake. To protect crops they are fed with corn.

http://www.timesofisrael.com/fly-and-feed-tens-of-thousands-of-cranes-winter-and-eat-in-israels-north/