A few comparisons to help locate the Birds on the Mappa Mundi.
According to Shore the bird mind "organises itself around concepts which allow a dynamic shifting of emphasis". Its a kind of sensitivity. Every updraft or downdraft changes the whole situation from moment to moment. It sounds a bit like Pulsatilla (WIND flower!), where the significance of events or feelings can easily change and so she changes her opinion every moment. Pulsatilla's current 'fad' is the only one that has any real validity. Like some of the drug remedies she lives in the NOW! Contrast this with the people who understand a subject and then form an opinion that can never be changed, esp, the Ferrum Series.
The birds, especially eagles can be very impartial, just witnessing, without emotional prejudice. It's a kind of emotional detachment that allows the truth to be seen. Her path from thermal to thermal is clear. Her reverie is awesome - timeless and without boundaries. The Bald Eagle (Haliaeetus leucocephalus) also has an interesting clairvoyant aspect to her inner psychic world - a beautiful retreat - and sometimes she uses Cannabis to enhance her experience.
When you start feeding birds in the garden they soon come to expect a morsel. They know - there's a kind of empathy, but there's no emotion, like the unprejudiced observer, as in Stage 16 (e.g. Ytterbium) and Stage 17 (e.g. Lutetuim). This knowing has been linked with a the autonomous spirituality of the Lanthanide series as a whole. Like the Lanths, they are free spirits. (See also: Actinides - the hidden camera by M. Suijs).
This is well observed in the Great Horned Owl (Bubo virginianus). The main idea is that Owl is a wise old soul who loves to teach.
To sum up it seems like the bird mind has a wisdom reflecting sensitivity, clarity and empathy, rather than love or attachment. The doctrine of non-attachment taken a stage too far for most of us to be comfortable with.
Ref: Birds, Homeopathic Remedies from the Avian Realm by Jonathan Shore, MD.