This is a build I came up with as I LOVE max dc and rains kenku druid just didnt get it. Had to drop necro to achieve max dc but I am sure I wont miss it that much. Currently level 2 with this but havent had much time to play, cant play till 9 tonight cuz of work ( ) but ill try to get it leveled as soon as I can to get the most info to you guys as possible.
I think the 9 STR and 13 INT is before subrace modifiers which will lower those to 8 and 12. I would definitely pick up Greater Ruin and if you can get 50 base Spellcraft for 2x Greater Ruin. Also what is the purpose of Bard level?
I think bard was taken for the umd dump at lvl 40 (to use wizard scolls like gs, bbod, mindblank); though your level spread doesn't work out: You want to take the monk level pre-epic (for some reflex saves) and the bard at level 40 to max tumble, disc and umd.
You'll have nearly 60 points left for AE so I'd definately drop armor skin in favour of greater ruin and put those skill points from AE into spellcraft. AE isn't the most useful skill for druids past level 20 though I don't know if it affects the new summons in any way (epic skill focus: AE does, but I'm not sure about the skill itself).
I have a much beloved Kenku druid that is working slowly towards his second Demi itineration.
If it is any help here are my thoughts:
First thing to remember is that you are a Secret Subrace and therefore you do not have all the BUR perks. You need to concentrate on less things in order to do them well.
38 Druid/1 Monk/ 1 Pal - this combination works well - I would not bother with bard for UMD.
Although EVO spells look good for a druid I think CONJ is a better school to take LSF in because your 3 best damage spells Bombardment, SOV and ES are all CONJ. As for Desert Sirrocco - well yes I have blasted a few Fumes etc with it but frankly most of the time there is a cleric and/or bard who will beat you to the draw.
You do not need Armour Skin - Druid AC is very high as is with a Monk splash - go with Greater Ruin as mentioned above.
'Extend' is your best Metamagic - 'Empower' is nice if you can fit it in but I agree that 10 x Greater Wisdom is probably preferable on a Kenku.
For skills - Concentration/Parry/Heal (remember you have high Wisdom and therefore do not necessarily have to max this skill) / Spellcraft (50 ranks for 2xGR)/ 43 Disc and Tumble - Then chose either Lore or AE - both give some small advantage.
If I get x2 Demi I will be reincarnating my Kenku to a Kenku because they rule !
I am afraid I don't have this build written out anymore as it is one of my first toons here on HG.
The build is, however, virtually identical to the one you have posted except I only took 8 x Greater Wisdom and took Epic Mage Armour and Empower Spell with those 2 extra feats. Particuarly EMA has been a good choice for me as it gives Epic Dodge and boosts skills which is nice for a novice Druid on there first trip to the 9 Hells and beyond.
As mentioned I also have Greater Ruin, instead of your Armour Skin - GR is really a great party support and such fun when that Elite nasty goes pop right under the tanks' noses, they will appreciate you for it even if they are covered in goo.
I, like you, took LSF Evocation but really for Hells, which is where I end up playing this mostly, I think I should have taken LSF CONJ instead; quite some bosses can be Bombarded or ES with good success. When I reincarnate I will probably swap - I think this will help my Summons as well, if I understand the new mechanics for them correctly. I may also drop EMA and Empower Spell for the 2 extra Wis as I use alot of Drown, Crumble and CIS spells, DC really is king down where the big baddies live.
If you are aiming for an Abyss Druid you may want to look at other schools of magic. I hear that NECRO and EVO are better there but as I rarely run my Kenku into the Abyss I think it is probably better to make a whole new toon for that area. Maybe an evil Kenku twin?