Wild Weather

Photo: Janet Ng.

Photo: Janet Ng.

Spring snow storms, tornado warnings, hail storms, and thunder storms are all part of field work. While we can take cover in our houses and trucks, Ferruginous Hawks are left out in the storm to fend for themselves.

It can get pretty rough out there. In fact, Ferruginous Hawk nests can actually blow right out of the tree, usually killing the eggs or young. Our nest monitoring program has found that 20% of nest failures are due to nests blow-outs and climate change scientists are worried that this will happen more often when storms become more frequent and more severe.

 

World’s Biggest Ferruginous Hawk Nest

FEHA nest sculpture in Leader, SK.  Photo: Janet Ng

FEHA nest sculpture in Leader, SK. Photo: Janet Ng

Some of our field work takes up to far flung places in Alberta and Saskatchewan.  Leader, Saskatchewan has several claims-to-fame including nine Larger Than Life sculptures that are scattered through town.

Our favourite, of course, is the 15 foot Ferruginous Hawk nest that resides on main street.

FYI, they frown upon climbing into the nest.

Burrowing Owl family in Leader, SK.  Photo: Janet Ng

Burrowing Owl family in Leader, SK. Photo: Janet Ng

Counting Beaks and Butts

BabyFEHALookingUp2

Baby Ferruginous Hawks look up at our Tree Peeper camera. Photo: Janet Ng.

Our Raptor Ecology and Conservation Team (REACT) is running North America’s largest Ferruginous Hawk nest monitoring program.  In order to study Ferruginous Hawk ecology and potential cumulative effects, we check on hawk nests once a week to compare nest success across the Canadian Prairies.

We use an extendable painter’s pole with a camera mounted on the top to peer into nests.  We call them our “Tree Peepers”, trademark pending.  This method is effective and fast, thereby reducing disturbance to the nest. Check out the video below to see how’s it done.

 

We check on nests until the young fledge (i.e. naturally leave the nest) or until the nest is done.  If the nest didn’t fledge any young, we record reasons for failure.  Was it predated?  What kind of animal was the predator?  If the nest was successful, then we record the number of young fledged, when they left the nest, and other similar data.

All the data goes into our huge database (cue computer noises) and is readied for our analyses.

Nice view, guys!  Photo: Janet Ng

Nice view, guys! Photo: Janet Ng