When we think of breeding birds, timing really is everything. There have been several studies investigating nest success as it pertains to the effects of climate change and earlier spring. Considering that much of the biomass consumed by baby birds comes in the form of caterpillars, and many of them loyal to oaks, the earlier warmer spring weather is triggering the earlier maturation of caterpillars. By the time the birds arrive for nesting, many caterpillars are already moths, not the same nutritious and available food as they were in caterpillar stage. Spring birders of talk about "warbler neck," a condition one develops after long hours of looking towards towering canopies for the warblers gleaning insects from the buds of trees. With migratory songbirds declining across their range, potentially from a number of factors including climate change and the disruption of natural cycles, we may have to start looking harder for those signature signs of spring like the colorful warblers passing through on their way to Canada.