First, welcome to the Forum - you will find a lot of folks here quite willing to help, but be ready for the occasional very pointed comments.
Just for the record, these are all Canada Geese - not a duck in sight.
A couple of points - it would be nice if you could number your images when you post them - makes it easier for a reviewer to refer to them.
The first one looks almost like a flash was used as the bird appears to be slightly overexposed. I am not sure what metering you used on this one, but for single subjects like this, I often use spot metering to make sure that the exposure on the subject is good. I don't really care about the background as it will often be blown out anyway.
The second shot is just too cluttered. When I saw it, I asked myself - " What is the subject in this image?" - I really didn't see one, except a lot of random birds and an orange object of some sort, that probably shouldn't even be in the final picture. Remember, it is okay NOT to take a picture.
If you are just starting out, you will want to read up on composition, including things like the rule of thirds and other aspects of image composition. You might want to check out this site -
Photography Composition Articles Library . Ron Bigelow has three definitive web articles on composition - the first one is here -
Advanced Composition -- Part I . You will find the link to the successive articles at the end of each site. As well, you can find an incredible amount of stuff by simply googling "photography composition".
There is also an excellent site on bird photography here -
Secrets of Digital Bird Photography . More sites dealing with bird and wildlife photography can be found using Google and the appropriate search criteria.
Hope this helps. If you have any further questions, post back and someone will be sure to answer them.
WesternGuy