Manitoba Peregrines > U of Alberta, Edmonton, Alberta
U of Alberta - 2009 / Damon & Radisson
Alison:
This is not a good sign:
allikat:
Ravens are ugly....meaning they are aggressive >:(
The only thing that can be done now is for someone from the project to go and destroy their nest to drive them out of there.
They will however keep trying in the same spot so unfortunately, if the project doesn't want to tackle this nest everytime they have almost completed it, then, it looks like these Ravens have found themselves a new home >:(
birdcamfan:
There is a lot of building going on here. They come every 5 to 10 minutes with sticks and material. They certainly look like they have the parental urge going on!
carly:
Well they're building a nest for sure, they keep coming in with sticks and branches :( .
And a raven pair can fend off a peregrine falcon, I've been googling:
" Ravens can hold their own (oftentimes through strength in numbers) against eagles, hawks, falcons and vultures.
Nesting territories are guarded year round. Ravens will even drive off other ravens if local foraging opportunities are slim. Only Peregrine Falcons are tolerated/respected enough to be allowed to nest nearby. This is not to say ravens fear Peregrines. The raven's ability to fly upside-down and defend itself with both claws and beak is enough to thwart even the fearsome dive-bombing attack of a Peregrine."
allikat:
I was afraid of that...
Ravens....yuck!!!
I wonder if there is anyone there that can kick them out of that nestbox? I don't know if they are going to make a nest inside the box or use it as is...they always make enormous nests at the top of tall mature trees....which sometimes, falcons use after the Ravens and/or crows have left it.
All I know is that they do get very discouraged if the nest they build is dismantled (help of humans here)...but I don't know the access to this falcon nestbox as it may be very difficult to get to. So if they do build a nest in a nest, not sure if anyone can interveen and discourage them so they leave... ???
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