I have no advice on birding except to do your research, know the local birds, their habits and the preferred habitat and then just get lucky.
I bird for a different reason, I make scale models and dioramas so I like to see the animals myself if possible to make a model.
Here are a few birds I saw on my last trip to Hawaii. I go every year for several reasons, usually I stay for several weeks up to a month at a time, this year I spent most of November on the big island and my family celebrated Thanksgiving there so it was a longer then normal trip but we had a fantastic time.
Here are some of the birds I photographed, sorry the pictures are not that good, on the 3rd day there the case I have for my favorite camera flooded on a scuba dive. I saved the memory card but the camera is beyond repair. The camera I am using now was a Christmas present to myself 2 years ago, cost over $2K and is so complicated to me that I rarely use it, as the photos here will show. I just have to practice, that and the fact that most of the lenses I have for it are for macro photography while I am diving makes taking photos with it a little difficult for me.
Here is a Hawaiian short eared owl, it evolved on the island before humans so there were no rodents for it to feed on, because of this it is a day active owl that hunts birds.
Here are a couple of other endangered birds, the first photo in the upper left is a pair of Hawaiian coots, and the bottom photo is the Hawaiian stilt
Here are some naturalized natives,
Yellow billed cardinal
saffron finches
Finally there are kalij pheasants and red jungle fowl that have also been intorduced and are now "native" to the islands, I saw both but did not get a photo of the pheasant, here is the red jungle fowl