Birds are at risk anytime light is reflected from a window, and that means all year round! Seasonal migrations and the periods when birds are fledging young and/or young of the year are dispersing are particularly dangerous. When there are more birds around the risk increases, and I know we all want more birds around! But, believe it or not, and despite their’ excellent eyesight, windows or clear glass panes do not appear as a barrier anytime of the year!