Monday, October 14, 2019

A Beginners Guide to Hummingbirds that have Appeared on this Blog (with bonus mystery bird)

Wow, quite a Summer we had, bird fans. We really crammed it in here on the blog, with The Great Hummers of Late Summer being an unvarnished success by all metrics that matter (quantity, quality, name of feature). We also proved that it is theoretically still possible for this blog to come out on a weekly basis, if highly unlikely. Yes, my recent trip to the greater Tucson area proved very fruitful (read: birdful), especially for hummingbirds, and we had some great blogs about them. However, when you stop and think about it, what did we gain?

That's why today I'm going to talk a little bit about how we might take the hummingbird friends we've made this month and actually gain some knowledge that will help us find them again, in the wild. When I started this blog I never thought that it might be something people who have any interest in identifying birds would read. After all, there are so many better resources out there for that. So instead I chose to focus on 'birds for the casual bird enjoyer'. However, if there's one thing that's become clear the longer I've stayed in this hobby, is that it's at least a little bit contagious, and regular readers often catch the "I want to look at that bird and know what it is" bug (read:bird). So read on, and you too might add some hummingbirds to your life list. But probably not, unless you live, like, in the far South West.

And one more quick ground-rule- these ID tips are intended to be for birds found in the USA. There are places that have like, tons of hummingbird species, and they all look the same, so no help from me there.


Ruby-throated Hummingbird
Key Identification Feature: You might think that the ruby throat would be the dead giveaway, and you're sort of right. But something you'll see as we go down the list is that these color features are highly dependent on 1) male birds and 2) getting the right light. You see Hummingbird coloration is largely structural, not pigment-based. This means that seeing those bright colors depends on the light hitting them just right. An easier ID is that if you live on the East Coast, this is basically your only hummingbird, baring weird accidental appearance. Other than that you have the green body with a white belly, but that's a pretty common color scheme.


Anna's Hummingbird
Key Identification Feature: They have a redish-pinkish head, almost to the point of looking like they're wearing a full hood. Lives on the West Coast. For me, the vast majority of the time, if I've seen a hummingbird along the pacific, it was an Anna's. Pretty easy ID


Allen's Hummingbird
Key Identification Feature: Crazy colors! Unlike most hummingbirds, this one has spots of orange mixed in with spots of green, mostly along the top. As compared with a later orange hummingbird, this one has less orange, more green, generally speaking.


Costa's Hummingbird
Key Identification Feature: A hard one! Very similar to Anna's, but if you see something you think is an Anna's, but the 'hood' has weird points that extend downward, kind of like lapels or shoulder pads (and sometimes away from the head), it might be an Anna's. Also a purple colored head, vs a more red or pink one in Anna's (but the colors here are not always easy to see, as I mentioned earlier). Smaller, more 'hunched' posture than Anna's, which are sleeker looking. It you're not sure, it's probably an Anna's, as these are not seen as often in most places.


Broad-billed Hummingbird
Key Identification Feature: Pretty easy, I would say. Super colorful, blues and greens all over the body, even without hitting the right light. The bill, though, is really where it's at. Red, slightly curved, with a black tip. Not many hummingbirds have this combination. It is also reported that the bill has a 'broad base', which is what the bird is named for, although it's not exactly the kind of feature I think a normal person would notice or remark on.


Black-chinned Hummingbird
Key Identification Feature: A dark head and a distinctive color pattern on the throat that goes black chin, purplish necklace (sometimes just looks black), white collar. Also has a little white spot behind the eye. The top of the head is always green, in contrast with some of our more colorful hummingbirds above.


Rufous Hummingbird
Key Identification Feature: Extremely orange. If you see a hummingbird and are like "wow, I didn't know there were orange ones", it's probably a Rufous. You might see little bits of green here and there, but less so than in an Allen's. I've been informed that there are basically no differences between an Allen's and Rufous female, so you probably shouldn't even try.


Rivoli's Hummingbird
Key Identification Feature: Big! Darker than most. If you trust pictures on the internet, very colorful throughout, but that's not how I saw it. If you see a hummingbird that looks a lot sturdier and a little slower than normal, it's probably this guy. Long wings and tail with prominent black. Another white eye spot haver.

So, given all that information, we're probably all hummingbird experts now, right? Well, not so fast, because you see, this is a guy I haven't been able to identify. I also posted in the usually very accurate "What's this bird?" Facebook group and there was no consensus. I got Violet-crowned, Broad-billed, and Violet-crowned x Broad-billed hybrid, which is apparently something that can happen. So I present to you now, this Mystery Bird. Maybe some day with lots of training, it'll be YOU who finally tells me what he is. But probably not! The combination of fast moving, super small, highly variable color patterns within species, and colors that requite light to hit at certain angles make hummingbird identification pretty hard. You'll be accurate probably 90% of the time just saying it's a Ruby-throated if you're on the East Coast and an Anna's on the West, to be honest.





Potential Violet-crowned Hummingbird
July 2019

Key Identification Features: Looks a lot like a broad-billed, but check out that streak of blue along the head and back. Also, take a look at the white neck and belly, and then go look at the Broad-billed again. Much more white! However, it's not perfect, since these guys are supposed to have very straight, red beaks. And ideally there'd be an even more white. What's going on here? A trick of the light? Some weird hybrid? Maybe we'll never know. Still, I think I'm probably going to count it, since I saw it at the wonderful Patton Center for Hummingbirds, which is a place that reports daily sightings of these otherwise fairly rare birds.

Still, if you think you know what this bird is with confidence, sound off in the comments. Until next time, bird fans-

Tuesday, September 17, 2019

Rivoli's Hummingbird


Rivoli's Hummingbird aka. Magnificent Hummingbird (arch., but extremely complimentary)
Madera Canyon, Arizona
July 2019
Member of the Hummingbird Family
§A Hover of Hummingbirds§

~True Bird Fact~ Among the largest of the hummingbirds, it's hard for a Rivoli being this zippy and also so big. In contrast to smaller hummers, they're a bit slower, can actually glide a bit sometimes with their wings, and are more insectivorous. They also have one of the highest recorded heart rate among all vertebrates (420-1200 bpm).

Has, like, half a dozen degrees, loves going to college
Mysterious source of wealth
Names his home/boat with words that no one has any idea of the meaning of, like "Ciceronian" 



Well, we've got a Eponymous bird here, and you know what that means

Francois Victor Massena, 2nd Duke of Rivoli (a 7 year old here, presumably looked older as he aged. This is the only picture I could find, sorry!)
(1799 - 1863)

Francois was the youngest child of Andres Massena, one of Napoleon's military commanders during his whole thing. His father's nickname, by the way, was "The Dear Child of Victory", which has got to be hard on a kid. Described on his Wikipedia page as an "Amateur Ornithologist" (hey, that's me!), he accumulated quite a collection of bird specimens in his lifetime. One of the finest private bird collections, the 12,500 birds were eventually sold to an American naturalist, Thomas Bellerby Wilson, and made their way to the Philadelphia Academy of Natural Sciences. Combing through his collection with his cousin, Charles de Souancé, resulted in the describing of a number of new parrots (new to western science at least). You might remember Francois' wife as the source of the name for Anna's Hummingbird. A hummingbird power couple to be sure.

Thursday, September 5, 2019

Rufous Hummingbird


Rufous Hummingbird
Madera Canyon, Arizona
July 2019
Member of the Hummingbird Family
§A Bouquet of Hummingbirds§
The Longest Migration Route of all North American Hummingbirds
The Northernmost Breeding Hummingbird

~True Bird Fact~ So, about that Migration Route- it's really pretty impressive. They travel nearly 4000 miles from Mexico to Alaska along the pacific coast, and then back down along the Rocky Mountains. And they do this every year, and at such an incredibly small body size. This migration is among the most impressive in the animal kingdom. Tough birds! Also, helpful, since their strange clockwise route makes them significant pollinators across a really large area.

~Additional Hummingbird Fact~ Hummingbirds are fast, but not so fast that they have no predators. Often these are the same animals that eat insects, which despite previous claims on this blog, does not mean that Hummingbirds are bugs. However, a clever defense that many birds employ is building a nest in a tree occupied by a bird of prey. These predatory birds are too slow and big to be interested in the small and zippy hummingbird, but they do eat the things that eat Hummingbirds. Smart!


How Endangered Are They? I was surprised, dear reader, to see Rufous Hummingbirds were on the IUCN as a Near Threatened Species. After all, there are a lot of them. 19 million, by the IUCN's own estimates. So what is endangering this bird, exactly? Well, it's actually that exacting and specific migration route. See, if something goes wrong at any of those spots, it impacts the hummingbird. Largely we're talking about climate change here, and the spring flowers blooming too early for hummingbirds to feed off of them. But also they are going to be impacted by the large insect die-offs that result from increased use of pesticides in agriculture. Population numbers have been estimated to have dropped by 60% since 1970.

Thursday, August 29, 2019

Black-chinned Hummingbird


Black-chinned Hummingbird
Patton Center for Hummingbirds, Patagonia, Arizona, USA
July 2019
Member of the Hummingbird Family
§A Tune of Hummingbirds§

~true bird fact~ Ok, let's say we take these bird at face value, and assume they are not robots or fairies, but instead are living non-magical creatures. How do these hummingbirds eat, exactly? Well, they flick out their nightmarish tongue into a source of nectar, and that nectar travels along (in a Black-chinned) two grooves in it. The hummingbird then slurps the tongue back into its mouth and squeezes the nectar out. These licks are so fast that they can happen as often as 17 times each second. And I thought I ate fast!

~An additional hummingbird fact~ A hummingbird egg is about the size of a coffee bean, but the nestlings grow quickly. In fact, they grow so much that young birds become larger than their parents. Since a hummingbird nest is made partly out of spider silk, and the birds involved are so light, the nest can just stretch and expand to accommodate this growth. 

Proud atheist
Loves esoteric and complex board games
Pipe smoker
 

Well, I hinted at it in the last blog, but I guess now that I've posted an actual feeder pic, the jig is up. I prefer to get images of hummingbirds in their natural habitat when possible, but the opportunities provided at Tucson Audubon's Patton Center for Hummingbirds are too great to pass up. It is a really cool, extremely off-the-beaten path birding spot, and unique in its ability to draw hummingbirds. There were also some really lovely and helpful volunteers on the day that I visited. Check it out if you're in the area, or even online, where there are live hummingbird cams. Did I see the legendary Violet-crowned Hummingbird they are so well known for? Maybe! No really, I mean literally maybe, I don't know if the bird I got a picture of is the Violet-crowned. But I guess you'll be able to judge for yourself soon, on this very blog.