Coupling Cormorants and Migrating Monarchs in February
Walking on West Cliff Drive on the Westside of Santa Cruz, I sought the Brandt’s cormorants I had seen a few days earlier. Cormorants are common and plentiful so most people simply ignore them. But when I saw a group of cormorants close together on a rock ledge, I knew something was up. Sure enough, closer examination revealed it was a small rookery of nesting birds. Or at least birds getting ready to nest.
Numerous piles of seaweed were placed a few feet apart. Some birds sat on the messy disorganized mounds of ocean plants while others stood nearby protecting their small territory. When a bird flew off to feed or it looked the other way, another would snatch a beak full of fibers. If one got caught in the act, noisy squabbling and beak jabbing ensued.
Their breeding hormones had transformed their throats into a vivid cerulean blue that matched their eyes. White stringy feathers sprouted from their heads and backs, contrasting their sleek black bodies. They impressed each other with ritualized courtship behavior: heads thrown back, tails skyward, wings curled and vibrating. Sometimes they would just shake their heads vigorously, mouths open. Below, waves crashed against the cliff.
To see a video of a Brandt’s cormorant displaying go to: https://www.youtube.com/watch?v=Lo_3aAL3geo
And see a nest material theft in progress: https://www.youtube.com/watch?v=3KP1rO4GfHU
I plan to visit this colony regularly to watch them build actual viable nests, lay eggs and raise young.
On my way to my car, I spotted a snowy egret playing in the surf. I swear that was what it was doing. Without any apparent attempt to feed or do anything practical, the egret would walk into the oncoming waves, enjoy the flowing foam around its legs then lift upward quickly when then water became too deep. It then flew back toward the cliffs and started the game all over again.
Then onto Soldiers Field to check out the Monarch butterfly situation. I was surprised to see them still there, energetically flying about in the warm sunny air. No doubt they won’t be around much longer.
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[…] Brandt’s Cormorants are most easily identified by their bright blue throat patch. They also have a few spindly white feathers on their back and cheeks. (Here they are in February: https://carlabrennan.com/2018/02/06/vitamin-sea-and-butterflies-in-february/) […]
[…] previous posts on over-wintering monarchs: https://carlabrennan.com/2018/02/06/vitamin-sea-and-butterflies-in-february/ […]