Showing posts with label Weather. Show all posts
Showing posts with label Weather. Show all posts

Monday, October 13, 2008

The Santa Ana Winds



Channel 8 Weather man gives brief explanation of Santa Ana Winds


With the Santa Ana winds picking up, I thought I would check out some facts behind the winds.






Brief Explanation from the Weather Channel


If you live in Southern California--especially the Los Angeles, Orange, or Riverside counties, you have experienced the Santa Ana Winds.


The Weather Channel describes Santa Ana Winds this way:



"SANTA ANA WINDS
The hot, dry winds, generally from the east, that funnel through the Santa Ana river valley south of the San Gabriel and San Bernardino Mountains in southern California, including the Los Angeles basin...."


Next time you feel those hot, dry winds you might remember more about it. Remember, too, that the Santa Anas often bring some interesting birding our way. Bird in all weather as long as it is safe, and you will find some interesting and even rare birds. Have fun birding in Orange County in all kinds of weather!


External Links and Resources

Meterology Online

UCLA: The Santa Ana Winds FAQ

University of San Diego: Santa Ana

Wind


Monday, November 12, 2007

A Walk at Bolsa Chica Before the Winds


Willet--Catoptrophorus semipalmatus in the pickleweed. In the Fall, pickleweed turns red or pink on the tips.

I went for a walk with a friend on the day before the Santa Ana winds started in earnest. As you can see in the picture above, the tips of the pickleweed had turned red and pink--its fall colors. Check out this University of San Diego site Plants of Salt Marshes to see more pictures of pickleweed (check under the Chenopodiaceae - Goosefoot Family). Pickleweed is all over marshes, estuaries, and tidal wetlands. It can grow in salty environments by enclosing the salt in segments that eventually break off. It is a native plant. A Willet--Catoptrophorus semipalmatus is in the pickleweed above, and it was not the only one. There were lots. Willets are interesting birds. They look bland and gray, but when they fly, they have a striking black and white pattern on their wings. They have an interesting call that is very much part of the mood and atmosphere of the Bolsa Chica. This short video from the terrific site the Internet Bird Collection lets you hear the call and see a Willet in action.


A Willet--Catoptrophorus semipalmatus Foraging.

This Willet was over by the Bolsa Chica bridge off PCH. It was one of many foraging in the plants. Willets are often in that area to the left of the bridge as you walk across it. Sometimes Willets and other birds are huddled at the far end of the mudflats by the footbridge.



Eared Grebe--Podiceps nigricollis--one of several very active fishers there that day.

Eared Grebes dive under the water, but not usually very deep, so you can see them beneath the surface. My friend Ron and I saw an Eared Grebe chase a fish through the water in a chase that was fast-paced and dramatic. We could see the silvery smelt streaking through the water with the grebe following every twist and turn. The smelt actually jumped out of the water at one point to escape, but it was not to be. The little grebe had the smelt for breakfast. My friend, being a fisherman identified the fish. Being a birder, I identified the bird.

American White Pelicans--fresh water birds--on the strands of land off the observations point.

American White Pelicans feed in fresh water, and I guess part of Bolsa Chica has enough fresh water for them. They feed by swimming on the surface of the water--often in a synchronized group--and dunking their heads down in the water to get the fish. Very different from the Brown Pelicans who dives into the water after the fish. A few Brown Pelicans were also here that day splashing into the water in the distance. See the All About Bird page on American White Pelicans. The American White Pelican breeds inland and winters along the Southern California Coast.


Marbled Godwit feeding in the shallows.

I often see Marbled Godwits here near the bridge. I think they are pretty birds. Their black-tipped pink bill and pretty brown patterns are always a welcome site when I walk on the beach or in the marsh. Their call is another one of those sounds that give feeling and ambiance to Bolsa Chica and other wetlands. Like the American White Pelican, they breed elsewhere and winter in Southern California. They breed in grasslands which are fast disappearing and that is of concern as far as their future. Read Cornell's All About Birds article on the Marbled Godwit for more details. Read the Audubon Society's watchlist article on the Marbled Godwit's status in North America. Check out the Nature Conservancy which actually buys up natural areas and makes sure they are preserved.


Great Egret hunting.

Great Egrets are so graceful. They are usually slow moving but fast to strike. They are easily differentiated from the Snowy Egret by their much larger size (15" longer in length and 10" longer in wing span), and their orange bill. The Snowy has a long, slender black bill. Snowies are also faster moving, hunting by dashing around and moving their feet. The Great Egret sometimes moves around a little, but nothing like the Snowy. Mostly the Great Egret waits and strikes. Its manner makes me think of a snake. They can be found in estuaries, marshes, lakes, and most places with fish. This one above was moving with deliberate slowness, watching and waiting for its moment.



Killdeer--Charadrius vociferus scampering around the shore.

The Killdeer--Charadrius vociferus above was one of several scampering along the shore here. There were 4-5 Killdeer--Charadrius vociferus. Killdeer--Charadrius vociferus are fast-moving little plovers. They scurry around searching for food. Very high energy level. Check out my Bird Profile on Killdeer.


Peregrine Falcon kicking back.

This Peregrine Falcon was evidentally not hungry, and birds did not feel threatened by its obvious presence. Lots of Mourning Doves came and sat in the branches near the falcon. He barely looked at them. It was great for us to see him there.





Male Ruddy Duck in Winter Plumage.

On the way back, we walked on the path closer to the street. It is weedy, dusty, dirty, and the asphalt that covers part of it is broken, but it does give on a closer view of some of the ducks floating away from the main path. This one above is a male Ruddy Duck. You can tell by the white cheek and dark cap--even though it is not holding its tail at the usual 45 degree angle.

We walked in a circle. We took about 2 hours, but we stopped a lot to look at the birds. Walking beyond the bridge at Bolsa Chica is a really great birding experience. It doesn't end at the footbridge.



Links

Amigos de Bolsa Chica

Especially see their Birds and Science Page for information about wetlands and about the different seasons in the marsh.



Bolsa Chica Conservancy

Especially check out their Birder's Guide which is in four parts--links on the side. The key is a pop up.







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Sunday, October 21, 2007

A Windy Walk at San Joaquin Wildlife Sanctuary

Mallard and Cinnamon Teal dabble in the San Joaquin MarshMallard and Cinnamon Teal

The winds were just beginning, but getting strong when I went for an afternoon walk at San Joaquin Wildlife Sanctuary on October 21th. We almost got blown away. At least it felt like that. But birding in bad weather is not necessarily bad birding. (You just have to make sure it is safe to bird wherever you are birding in good or bad weather.) We talked with people who said there was nothing out, but we saw some good birds.

Above is a Mallard and a Cinnamon Teal. I like this picture for a few reasons. One, the colors are good together. The green on the Mallard, the reddish-brown Cinnamon Teal, and the blue water. I also like that it shows both birds in action. Both are dabblers. They get their bills in the water and chomp around for something to eat. Sometimes in deeper water, they lean down into the water so much that you only see their tails sticking out of the water. This photo shows their typical behavior of dabbling in shallow water. The picture also shows a significant size difference. Is this an optical illusion like the size of the pitcher on the mound during a televised baseball game or is it a real size difference? It is a real size difference. A Mallard is an average of 23" long with a 35" wing span. A Cinnamon Teal is only an average of 16" long with a 22" wing span. That is a difference of at least 7 " in length and 13 " for the wing span. The Mallard is over a half a foot longer than the Cinnamon Teal. There are several kinds of teals. Cinnamon Teal, Green-winged Teal, Blue-winged Teal and several more exotic kinds. Note that all teals are small ducks.



Cinnamon Teal at San Joaquin Wildlife Sanctuary

Cinnamon Teal dabbling in the water and mud for vegetarian goodies. Notice even the eye is red.


Notice both are in breeding plumage. It is October and both have a breeding season that begins in October. The Cinnamon Teal from October through June and the Mallard from October through May. Not all ducks are in breeding plumage at this time of year, but these two are. For me, getting a nice picture of a Cinnamon Teal without its head in the water has been a challenge. I know they have to come up for air sometime. I figure that one of my goals for this fall/winter will be to get a shot or three of a Cinnamon Teal sitting with its head up out of the water. (Yes, I set goals for walks, and goals for seasons. It gives direction to my birding.)

Black-necked Stilt at San Joaquin Wildlife SanctuaryBlack-necked Stilt--Himantopus mexicanus making strides across the duck pond. Notice all the little waves from the Santa Ana winds.


Now here is a Black-necked Stilt--Himantopus mexicanus going for a walk. I like Black-necked Stilts. A pair had an unsuccessful nest near the bridge at Bolsa Chica this last summer. It was in a very public place and was probably photographed more than the Killdeer--Charadrius vociferus nest by the path at San Joaquin Wildlife Sanctuary. The Black-necked Stilt is a common shore bird. Its body is only 14" long and it has a wind span of only 29" but its legs are very long and red. It gives it height. The legs are very long in relation to its body and that difference is where the name comes from--I am guessing. It kind of looks like what it is, a small bird on stilts. There are often Black-necked Stilts in the first two ponds. The wind blew steadily, and every once in a while the gusts came that made us wonder if we would get blown into the ponds. The birds were laying low in the ponds as the wind blew up on the paths, but they still were getting some wind.


Female Ruddy Duck at San Joaquin Wildlife Sanctuary

Ruddy Duck Female at San Joaquin Wildlife Sanctuary

There were about 10 or so Ruddy ducks in the second pond on the right. You can always tell them from a distance--and they are usually at a distance--by of their tails. They are stifftail ducks and their tails are at about a 45% angle to their bodies instead of being on the same plane as the body. The female has a line through her cheek. The male has a very white cheek. During breeding season, the male Ruddy has ruddy or reddish body and head and a bright blue bill. He is a is very flashy fellow. Their breeding season runs from March through August. Very different from the Mallard's and the Cinnamon Teal's breeding seasons. The Ruddy only over laps two months. At a length of 15" and a wing span of 18.5" it is not the biggest duck in the pond. They do tend to be in deeper water and in groups swimming rather than wadding. They are often off away from the more travelled area and often sleeping. Look for the 45% tail and the white cheek of the male.




White-faced Ibis, Cinnamon Teal and Other Ducks
White-faced Ibis, Cinnamon Teal--Anas cyanoptera, and other ducks


Notice how small the White-faced Ibis is. I first noticed it not because of the size but because of its black color with the green sheen. I didn't notice it until we were on our way out because its head was down the first time we passed it. In the pictures I took on the way in, it can clearly be seen in deep water with its head down. The White-faced Ibis is 23 " long and has a 36" wing span. A Mallard is an average of 23" long with a 35" wing span. It is the legs and color and the shape of the long, down-curved bill that draw the eye. But if the bird is foraging in deeper water and has its bill in the water, it just looks like another duck from behind--except for the color. I was looking for an Ibis, since I knew they were here. I just forgot to look at the size in relation to everything else on the pond. So remember the White-faced Ibis is the about the same size as a Mallard. Check groups for the black with the green sheen. In deep water with its bill in the water, you won't have the characteristic legs and bill to id it, and you might not know what it is you are really seeing. Look for the black with the green sheen, and then watch for it to come up for air.

American Avocets in Winter Plumage

American Avocet--Recurvirostra americana in Winter Plumage. Ripples in the water from the wind.

The American Avocet--Recurvirostra americana has a light reddish brown head in spring and summer and is totally black-and-white in the late fall and winter. It is 18" long and has a 31" wing span. It moves its head back and forth through the water as if it is panning for gold. They tend to hang out with other American Avocets--Recurvirostra americana, Black-necked Stilts--Himantopus mexicanus, Dowitchers, and other shore birds with somewhat longer legs in the shallows, but often not the really, really shallow places. They are often seen in pairs during mating season.

Green-winged Teal in Breeding Plumage

Green-winged Teal--Anas crecca in Breeding Plumage from October until June


So how can I tell that this bird with half its head in the water is a Green-winged Teal--Anas crecca? Well, first of all Green-winged Teals are dabbling duck like the Mallards, the Cinnamon Teal, and the Blue-winged , and this bird is dabbling. Second, the green eye markings and the rufous head. Then the gray color on the upper back and sides below the wing. This is the smallest teal at 14" long and a wing span of 23".

Blue-winged Teal

Blue-winged Teal--Anas discors

Another dabbler braving the winds was the Blue-winged Teal--Anas discors is 15.5" in length and has a wing span of 23". The third teal I saw that day. So if this is a Blue-winged Teal--Anas discors, where is the blue on its wing? Believe it or not, both the Blue-winged Teal and the Cinnamon Teal--Anas cyanoptera both have blue wings. The blue is just on the shoulder and the other feathers hide the blue when the wings are folded closed. If it should stretch its wing or fly, you would see its blue shoulder. So perhaps we should call this teal the Blue-Shouldered Teal. Notice the crescent by the bill. That crescent is diagnostic. This bird is on its way to full breeding plumage. Breeding season is November through June.

Great Blue Heron Hiding in the Reeds

Great Blue Heron--Ardea herodias trying to be inconspicuous among the reeds.

As we headed for the second pond, we saw a Great Blue Heron--Ardea herodias standing in the path where three ponds come together toward the start of the trail near the Audubon House. It was out for a walk. This is at least the second time we have see a Great Blue Heron walking there. As we walked closer, the Great Blue Heron disappeared into the reeds. When we reached the reeds where he had disappeared, there he was trying to hide. At 46" long with a 72" wing span, that is no easy task.


Remember out in the field, birds can look very different than in the field guide. You may not be able to see the whole bird. The light or angle may not be like the guidebook. And finally, the depth of the water when you are looking at water birds can affect how you are interpreting what you see. You might not know the depth of the water. You might think the bird is bigger than it is. Check the size and color and remember there may be long legs hidden in the water. There could be a White-faced Ibis among the ducks.




Birds in Order of Size, Smallest to Largest



Bird length/wing span/ breeding season

Green-winged Teal 14" long and a wing span of 23" Breeding October through June

Black-necked Stilt 14" long and it has a wing span of 29"

Ruddy Duck 15" long and a wing span of 18.5" Breeding March through August

Cinnamon Teal 16" long with a 22" wing span Breeding October through June

American Avocet 18" long and has a 31" wing span Breeding March through August

Mallard 23" long with a 35" wing span Breeding October through May