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What is your budget? If a pair of Steiner's or other high end binocs are not in the budget, consider Swift or motion cancelling Canon's. Excellent quality without the high price.What are you/her going to look at the most? Objects in motion or something like an eagle's nest. Can you mount them to a tripod? How far away do you/her like to look? Regular size or compact? All important questions.
In many cases I have come to believe that when new, some mid grade level binos can approach the image quality of the Steiners and Zeiss, but 20 years down the road, the Steiners and Zeiss are still great and rebuildable, while lesser brands have degraded with age.
I am a big fan of Docter binoculars made in Germany. I have an almost complete collection of their top line Nobilem binoculars. I would not recommend them though, they tend to be quit large.
Please observe that the Docter brand is not longer used for binoculars. They are sold, the new brand which still produces the Docter types in the old Zeiss Jena factory with the old workers is Noblex. And they of course have compact binoculars. https://www.noblex-germany.com/index.php/en/products@boatdetective : "Steiner is overrated and over priced." Yeah, of course. First of all, you obviously did not follow my link, second you obviously have no experience with Steiner, and third the same applies to Moto Guzzi...
7x50 to 10x50 are more common for water fowl that are 50-100yds away. The front objective is large enough to let in a lot of light- critical at dawn and dusk (the best times to go birding).