When I started keeping track of the Great Blue Heron nest via the Cornell Lab of Ornithology’s streaming nest cameras, I never imagined
how emotionally intense the experience would be. It was so scientifically
fascinating to observe so many behaviors at such close range. I saw how they
add sticks to their nest, wedging and weaving large ones on the outside and
setting small twigs flat on the floor. The male brought more sticks more often
than the female, and brought many before mating with her each time, and after
she laid each egg.
![Great Blue Heron nest cam](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tT9O7unC7R2mHoutDXfAl2bQ6DLcdp_vYO7q4TvdeIL8zbNIzQ6Fm0mWJ49INBHvOs-uW_TPLkS2YIdaFZx51cWUGn78STZK8gJfy_G-vNUvTwmRTKXJ1h80CDWCuMKw=s0-d)
I got to watch them mating, seeing close up how the male grabbed onto the female’s long spiky head nuptial plumes to hold his balance on her back.
![Great Blue Heron nest cam](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_u7kAtX7XLxvPU-CLcghlq1chSsMnaYubPCUob5UT8zOQZMApkKoxvQKF2_6Hhfc0zETNr4w9jFm-Nk1dpmJbwRLOEwHQkcnIJPFs8Ai-AV5UIm_qWPpFHAe-tgbyVoCg=s0-d)
Four times, I watched live as the female struggled and contorted her body and suddenly stood up to reveal a brand new beautiful blue egg. I missed seeing it live but did get to see a video showing the fifth egg’s arrival.
![Great Blue Heron Laying Egg](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tstdVpeYnfOo3kfbXtYVIrGg8HretwqST_NS80p61nCT30mNf5Cs6NhsKPt3qOfAmLJZXMgOY7sNRUov71cWqVURgmf6M_wjlOvtLLQFY_V8PL9btfGnFCP_oNTqVWag=s0-d)
I got to watch them mating, seeing close up how the male grabbed onto the female’s long spiky head nuptial plumes to hold his balance on her back.
Four times, I watched live as the female struggled and contorted her body and suddenly stood up to reveal a brand new beautiful blue egg. I missed seeing it live but did get to see a video showing the fifth egg’s arrival.
Watching the birds take turns incubating eggs and working on
the nest was enlightening, both because we always knew which bird was which
close up, which had been hard to do when I was watching the birds from the Lab
in 2009, and also because the two birds share roles fairly equally yet each has
slightly different ways of doing everything.
But familiarity leads to affection. I wasn’t online in the
middle of the night when something attacked the female as she was
incubating—the people watching were horrified when something seemed to collide
with her and she stood up squawking. Her loud distress calls awakened people
who had been sleeping with their computer on to hear the soothing sounds of
spring peepers in the background. No one was quite sure what had happened in
the darkness, but we soon had a grainy but decipherable video clip showing in
slow motion a Great Horned Owl headed straight for her head.
![Great Blue Heron after owl attack](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_uJSN78zUUvrtpqtwcc5I3Q_gDYSW4B16SMd6AEacBX3Rwy4BosleNPJt1Sfz_05CGIfuti2pZxAguTdRZ8DSvFnF7LU_TyWQet_EZYecW7OG_bKcdRbBFVFa4FInXZzg=s0-d)
The following day she was clearly stressed, and there was another middle-of-the-night attack. The only visible damage to her was that her head’s spiky nuptial plumes were gone, but she looked visibly shaken, and seemed entirely diminished. The owl came back a third time, when the male was on the nest. We hoped his larger size and strength sent it elsewhere for good. A few days later we noticed a cracked dent in one egg, which we think happened when she lurched up too quickly in one of the attacks. The cracks made it seem unlikely that that egg would ever hatch.
The following day she was clearly stressed, and there was another middle-of-the-night attack. The only visible damage to her was that her head’s spiky nuptial plumes were gone, but she looked visibly shaken, and seemed entirely diminished. The owl came back a third time, when the male was on the nest. We hoped his larger size and strength sent it elsewhere for good. A few days later we noticed a cracked dent in one egg, which we think happened when she lurched up too quickly in one of the attacks. The cracks made it seem unlikely that that egg would ever hatch.
Ithaca had such warm weather in March that this pair started
producing eggs over a month earlier than they’d even started building the nest
in 2009. But well into incubation, on April 23rd, I woke up and turned on the cam
to see four or five inches of snow piled up all around the incubating male.
![Nesting Great Blue Herons in snowstorm](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_s4l266XNsaLMi8OxcYpZFoun-ov8aHalSkjFoEegUv34lfaDRxRbksF_o3O0pgzDu1YDhCyK-ljhfIZnAxIx_TLvXkpRYJtxjXXkfzgb8hPxZOz6OqDc1atwDvuqd6UA=s0-d)
He stayed hunkered down all day, not getting up for more than a few moments, but when he did, the five eggs looked so bizarrely out of place surrounded by all that snow.
![Nesting Great Blue Herons in snowstorm](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tC3Z-eFJePwhnYiF83-62GK6h5-8l0DH_uuJIJU5Vlv6fzXlED0-gersAGzgB899IbE1UITWYTGZVOfylKADG11QaVBU7PLidF9apxmu0J4QOFisRGTzRaCqAwEwX7MQ=s0-d)
The female stayed away all day, and we started wondering whether she had decided to cut her losses and move on, but the male steadfastly incubated hour after hour. It was already evening when finally, after 22 ½ hours, he flew off, leaving the eggs. It seemed pretty certain that he, too, was cutting his losses, but less than a minute later he returned, and within another couple of minutes, the female came back and took over so he could finally get a bite to eat.
He stayed hunkered down all day, not getting up for more than a few moments, but when he did, the five eggs looked so bizarrely out of place surrounded by all that snow.
The female stayed away all day, and we started wondering whether she had decided to cut her losses and move on, but the male steadfastly incubated hour after hour. It was already evening when finally, after 22 ½ hours, he flew off, leaving the eggs. It seemed pretty certain that he, too, was cutting his losses, but less than a minute later he returned, and within another couple of minutes, the female came back and took over so he could finally get a bite to eat.
At each triumph, over an owl and over deep snow, we became
increasingly aware of just how many bad things could doom the eggs and even the
birds, even as we became increasingly attached to these tenacious creatures and
those beautiful eggs. And there were more intense events still to happen..
(Part II)
(Part II)
Last time I told you about the emotional roller coaster I’ve
been on since a pair of Great Blue Herons started nesting in full view of the
Cornell Lab of Ornithology’s nest cam. I’ve been learning so much that the
experience is extremely satisfying intellectually, but I’ve found it impossible
to maintain emotional distance from this little family.
After owl attacks on three nights, leaving the mother
missing some head feathers and one egg dented, and after watching the male
sitting faithfully for 22 ½ hours during a deep snowstorm, I’d not have been
surprised if the eggs didn’t hatch at all, and certainly expected them to hatch
few days late after the extended cold snap. But no--the first and second both
hatched on Friday, April 27, and the second egg to hatch happened to be the one
with the dent.
![Pips in Great Blue Heron eggs](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_s1-2aWNtZvTjzv06FT3OYDvGip3Y8nToRtbd6VuzkKjI2zyRSgvNMTs9EmbFuLjIruO_gSmTNqPvBA_AN22UpJKxYjkZhTNOEMIOP2J9KaGjbW2NxkQl39FwqePcvn1g=s0-d)
![Hatch!](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_vk1RcR9S2OYn-BvVJQpVEkJxDD-HJasGpC_KH0qUEbOPHaR831u0HtMEHNPtgvBQ3CtwAzjPYgwCagvdeiHKWvMy3rVJvLuse4-5GxZziOcF3f0spO3yNY5Rfrb07p=s0-d)
The third hatched on Saturday, and the fourth on Sunday. The birds didn’t feed them much over the weekend—I wonder if they were trying to delay maturation of the first to hatch so that the last to hatch wouldn’t be as far behind.
The third hatched on Saturday, and the fourth on Sunday. The birds didn’t feed them much over the weekend—I wonder if they were trying to delay maturation of the first to hatch so that the last to hatch wouldn’t be as far behind.
Everything would have been idyllic except that the owl
returned three times that weekend, and I kept collecting more information about
how Great Horned Owls kill and eat more adult Great Blue Herons than I’d
realized. The male was on the nest for these attacks, but on Sunday night the
female was squawking from a branch on the nest tree, and then she disappeared.
We didn’t see her at all Monday morning, even with four hungry chicks. I was
pretty sure that if she had been injured or killed there would be some noticeable
evidence, but no one at the Lab reported anything. Hour after hour the male
stuck it out, well after his stomach was too empty to regurgitate anything to
feed the constantly begging chicks. Finally in the afternoon one of my friends
at the Lab spotted her, safe and sound, in another area of the pond, and people
trained the moveable cam on her to show her fishing. When the male finally left
the nest, he flew right past her and she immediately returned to the nest and
regurgitated a nice big meal for her hungry young.
At each point, whether it was the dented egg or the snow or
the female’s long disappearances, a lot of people in the heron chat room
assumed the worst. The fifth egg didn’t pip until May 1, which was exactly
right since it was laid 2 ½ days after the fourth egg, but people constantly
asked why it hadn’t hatched yet and was the chick dead? I can usually be pretty
calm about how nature works, and I had already been well aware of the many
dangers that could suddenly destroy this nest filled with vulnerable chicks and the parents who were giving their all to raise them. I’d been taught in graduate school to
look at birds as populations, not individuals, and it’s very true that
protecting birds at the population level is what is critical in managing
natural resources. But watching the hard-working parents and their five chicks, I couldn’t see any as expendable. It made me appreciate how much work is
involved in creating and sustaining life even for a bird as common as a heron.
![Great Blue Heron feeding chicks](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_tzsBf7srRInt6XpR7iC2ZmqS0lMIBIbsCqIhDW3CiYoD2qZBencVsPtdQTmhdxrg9cqgXGQm3BWz3QsT4rssL2V5kbO932OzJ9CvN3UbZQWhn2j9cqpOaWOj92oVPXWQ=s0-d)
This pair of herons has raised a broods of four chicks all
the way to fledging each year since 2009. As I was working on this on May 3, a
thunderstorm raged over the pond. The female had flattened herself with wings
spread a bit to keep the force of the rain and hail on her, not the chicks. Every
time lightning filled the sky over the nest and thunder rumbled, I told myself
there have been many, many storms over Ithaca during the past three years, and
this would be no different. But
when I awakened this morning, I felt a flood of relief to see the birds safe
and sound. I’d love to be a zen-like person, learning from these birds patience
and a wisdom surpassing understanding. Instead, I’m learning how valuable each
individual life is, and what a triumph every day truly is.
![Great Blue Heron chicks](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_vGCkSVZ32d3PTTZe6BIXwKkkJeMHd_9yK0E4Fg-SFNKjYQgjhkHxd_cq3NIb77FMLCAokSnO0dqHWgatQGhvvDziDDfRtqIo6xi5MlTZPHAdBts78Yev_f0VqvWdwliw=s0-d)
Production of these two For the Birds programs was made possible in
part by a generous grant from an anonymous donor.