Hi Runaround
Depends what you want to see. Geneva itself is a good place for waterfowl. From the quais along the lake you can see Mallard, Gadwall, Teal, sometimes Pintails and Shovelers, Red-crested Pochard, Pochard, Tufted Duck, Goosander and Yellow-legged Gulls. This are the common species. Especially from OMC you can also see rarer ones, like Eider Duck. Perle du Lac, Quai Wilson, Jetée des Pâquis, Jardin Anglais, Port Noir and Ruth are the names of the lookouts around the end of Lake of Geneva.
A very nice area is also the Champagne, the landscape around the villages SW of the town of Geneva. The villages are Eaumorte, Athenaz, Sézegnin and Laconnex. The area in between is famous in Switzerland for Little Owls, Stonechat, Corn Bunting, wintering flocks of Yellowhammer and also perhaps Cirl Bunting and Hen Harriers. (Spring would be much better altough).
Another suggestion: Chateau de Chillon (Chillon Castle), near Montreux. 30 Minutes drive from Geneva and a wintering spot for Wallcreeper. But be warned, this beautiful little birds are devishly hard to find.
Homepages which could be helpful:
http://www.oiseaux.ch/birdline/ is an actual list of observations in western Switzerland. (In French, but with pictures)
http://www.chclub300.ch/ is the site of the Swiss Club 300. Links and recent sightings can be found here.
http://www.ornitho.ch/ is the site by Nos Oiseaux, also with recent sightings also of small reserves.
Lake Geneva is always good for vagrants (like Jaegers, different Gulls), so it could be worth to check out this sites.
If you need someone who could guide you:
[email protected], and ask there for Lionel Maumary. He is the president of the local society in Lausanne and one of the most profound birders in Switzerland. And he organises tours and trips in Switzerland.
I hope this will help
Greetings from Switzerland
André