Showing posts with label black-billed cuckoo. Show all posts
Showing posts with label black-billed cuckoo. Show all posts

Wednesday, January 20, 2016

Black-billed Cuckoo

Black-billed Cuckoo
Black-billed cuckoos breed through out much of the eastern half of the United States and southeastern Canada.  They prefer woody areas, typically building their nest in deciduous trees or shrubs usually fairly close to the ground. Black-billed cuckoos migrate down to northwestern parts of South America for the winter.
Black-billed Cuckoo
 Black-billed cuckoos are insect eaters. They eat a variety of larger insects which they glean from trees and shrubs. They particularly prefer large caterpillars. They will often knock caterpillars against branches to dislodge their spines before they eat them. They are not always successful and end up with spines lodged in their stomach. To counter this they will shed their stomach lining to get rid of excess spines.


Sunday, August 10, 2008

Birding at Necedah NWR

We also did a bit of birding while we were out at Necedah NWR. Since we were a few hours east of home we got to see, and photograph, some birds that I do not see very often even though the Twin Cities falls with in their summer range.
The field sparrow is fairly common, during the summer time, both in Wisconsin and back at home, although their numbers are declining.
The eastern towhee is not a bird that I see and get to photograph very frequently. In fact I actually have more pictures of the spotted towhee, which I took when I was down at the Bosque del Apache in January of 2007, then I do the eastern towhee. Both the spotted and eastern towhee were considered the same species until 1995. The spotted range through out the western half of the US while the eastern range through out the eastern portion.
The black-billed cuckoo is another bird that I do not see very often. I am sure that there are black-billed cuckoos close to home but from what I have read they are secretive and not often seen.
Black-billed cuckoo eat fruit, seeds, and large insects, especially caterpillars. It is not good to find a caterpillar eating bird in the area where the main population of endangered Karner butterflies exists. However the Karner larva are quite small and the cuckoo spend most of their time hunting for caterpillars in trees and thick brush instead of lupine fields. This is good news for the Karner blue and bad news for the red-spotted purple.
One of the birds that we photographed last year on our trip to Necedah that I was hoping to see again this year is the red-headed woodpecker. We did get some looks and a few pics of the red-heads but not as good as the ones that we got last year.
Necedah is great territory for red-headed woodpeckers. There are several parts of the the park which are covered with old growth forest. Trees that fall or die in these woods are left to decompose naturally. These dead and dying trees are filled with nooks, holes and crannies which are important to the red-heads. The red-headed woodpecker is one of only a few types of woodpeckers know to cache food for future use. They will hide seeds, nuts, and even live insects in spaces in the trees, insects are often wedged in tight so that they can not escape. That is why a lot of dead wood is important to these birds. Unfortunately in too many places dead trees are removed which makes it difficult for red-heads to find suitable habitat and why the population of the red-headed woodpecker is on the decline.