The Winter Bottleneck...Spring Plans

When I was in college (sometime last century to be more specific) taking wildlife ecology courses, the professor referred to the "Winter Bottleneck". This is the time of year when all wildlife species are squeezed into ever smaller habitats that can sustain them. Previously abundant food sources in October are now either consumed, covered in snow, or being dominated by larger, or more aggressive species. It is the toughest time of year for most wildlife. Body fat reserves have dwindled, temperatures are still cold, and fur and feathers are worn and less insulating.

This month we are witnessing the "bottleneck" in full force. Supplies of natural berries and fruit are almost gone. Grains and seeds are covered by snow, or were consumed weeks ago. If you keep bird feeders this is the time when you will notice more birds vising than any other time in the winter. You will notice bird species that were absent earlier, but are now attracted to the activity at your feeder. You will also notice you have to frequent the store more often to buy more bird seed!

So keep those feeders filled on a regular basis. See what new species are arriving. Notice when new "early birds" are arriving from the south and looking for a way to make it 'til spring.

Speaking of spring...have you given any thought to bird nesting boxes? Perhaps you have some already. Are they in good repair? Do they need to be cleaned out and fresh shavings placed in them? How about adding one or two that might be different enough to attract new bird species?

Check out the Nest Watch web site for ideas on building bird nest boxes to attract specific types of birds - and to deter the unwanted species! Maybe even build a nest box to try and attract nesting owls, like this Flammulated Owl (yes, it is a real bird).  if you have property with lots of Ponderosa pine, mixed with open fields or pastures, you might have good habitat for this very cryptic and nocturnal bird. Flammulated Owl nest box design.


Photo courtesy the Cornell Lab of Ornithology

KEEP THOSE FEEDERS FILLED!

                              -Hawkeye