This is from Avian Web a toxic list.
http://www.avianweb.com/toxicfoods.html
"The below is not a complete list. It is recommended that you consult with a vet, if in doubt.
Please note that the items marked with an* are especially toxic to birds and can be fatal. Toxic foods are foods that can cause allergies and/or health problems in birds. Anything high in sugar or salt is inappropriate, as are fatty foods. More serious are things such as chocolate, which is toxic to many pets. Caffeinated or alcoholic beverages are also dangerous. I provided additional information as was available.
Acorns
Agave, Maguey, Bayonet, Agavaceae Toxic Principle: Sap from the leaves, Seeds, Calcium oxalate raphides, Acrid volatile oils, Mechanically injurious Clinical Signs: Oral mucosa irritation, Contact urticaria, Skin: Immediate burning, erythema, urticaria, and edema, Granuloma reaction from punctures by leaves
Alcohol
Almond Plants / Seeds / plant-pan allergen profilin can cause serious reaction in some birds: Generally all plants of the Prunus genus EXCEPT the pulp of the fruit contain amygdalin or related glycosides which are slowly hydrolyzed to hydrocyanic acid. Some allergic reactions to almond nuts have been observed.
Alocasia
Amaryllis: Clinical Signs: Can cause vomiting, diarrhea, depression, appetite loss, tremors, drooling and abdominal pain
Angel's Trumpet (some species), seeds, leaves
Apple Seeds (small quantities ok)
*Apricot (seeds, wood)
Arrowgrass
*Autumn Crocus
Asparagus Fern - Sprengeri Fern, Lace Fern - Toxic Principle: Non-toxic, Berries, Sapogenins, Foliage Clinical Signs: Dermatitis, Irritant, Cardiac, sedative, and diuretic effects
Autumn Crocus/Meadow - Saffron
*Avocado (any part of the plant -- including flesh, leaves, seeds, stem, skin)
Azaleas: Can cause weakness, upset stomach, drooling, heart failure, depression and possible coma
Baneberry
Bayonet
Beans: Broad, Castor, Glory, Fava, Horse, Mescal, Navy, Pregator, Scarlet Runner) - Large Beans: such as Anasazi, Black, Fava, Kidney, Lima, Navy, Pinto, and Soy - should never be fed raw. However, thoroughly cooked are safe and healthy.
Beargrass
*Begonia
Bird of Paradise
Bitter Almonds*
Bittersweet
Black-eyed Susan
Black Locust (Robinia pseudoacacia)
*Bleeding Heart
Bluebonnet
Bloodrot
Box
Boxwood
Bracken fern
Buckeye
Buckthorn
Burning Bush
Buttercup (Ranunculus)
for the complete list see link above