The new Shinobird support out of AGOV is really good. You have small baron which Tributes itself to search a Ritual Spell and a Spirit monster, small baroness which searches a Spell/Trap that mentions Spirit monster, and a Field Spell which is a soft once per turn to Ritual Summon from Deck and either adds back a Spirit or Ritual Spell that is banished or in GY to hand when a WIND monster returns to hand or sets a Trap called Stars Align across the Milky Way. I have always seen this card as crazy but didn't have a home because it wasn't searchable and couldn't be used for every Ritual Deck. However, these cards are a wonderful addition to Shinobird.
For Ritual Monsters: 2 Shinobaron Peacock which bounces up to 3 monsters your opponent controls and Summons a Spirit from Deck on Ritual Summon. 2 Shinobaroness Peacock which bounces up to 3 Spell/Traps your opponent controls and Summons a Spirit from hand on Ritual Summon. During the End Phase, both return themselves to hand and Summon 2 Shinobird Tokens which are good for keeping bodies on field for Ritual Summons, Link Material, or bodies in general. 3 Shinobaron Shade Peacock which tributes itself to add a Ritual Spell and a Spirit Monster from Deck to hand. This gets you Shinobird Ritual stuff or something like Aratama for bodies and more searches. 2 Shinobaroness Shade Peacock which searches a Spell/Trap that mentions Spirit Monster from Deck on Ritual Summon. The only thing you are searching with this card is the Field Spell or the Ritual Spell since there isn't anything else worthwhile to play. Both can Summon themselves back during the Standby Phase after the turn they are banished which will be a sure-thing because Calling banishes Spirits from GY to Ritual Summon. 1 Transonic Bird. I feel like this is such a cool card that works well in Shinobirds. It can cycle a Ritual Spell in hand for a Ritual Monster that is listed on it and it can Quick Effect send a Ritual Spell from Deck to have its effect become that Ritual Spell's effect to Ritual Summon on your opponent's turn. Then, if it is tributed, you can negate a face-up card your opponent controls. Because we are playing Pre-prep and Prep, you can just search this card if you already have the necessary components of your Shinobird set-up. This gives you an extra Ritual Summon on your opponents turn to bounce their stuff and lock out your opponent with either of the big Shinobird Rituals. Then, we have 3 Aratama, 2 Sakitama, and 2 Amano-Iwato. Aratama just searches any Spirit Monster on Normal Summon, Sakitama is an extra free Normal Summon of a Spirit Monster and adds back a Spirit from GY, and Amano-Iwato is a floodgate that is summonable off of the Shinobirds.
For Spell/Traps: 3 Shinobird's Calling which is the archetypal Ritual Spell and it can banish Spirit Monsters from GY for Ritual fodder. Also, since it lists both Baron and Baroness, it is searchable off of Pre-prep. 1 Sonic Tracker which is the Ritual Spell for Transonic Bird and is searchable off of Pre-prep if you already have everything you need for your Shinobird plays. More importantly, it can banish itself from GY to send a Ritual Monster with the same Type or Attribute as a Ritual Monster you control. Since Transonic Bird is a Winged Beast, you can send any Shinobird to the GY which helps get more Ritual fodder into GY for Calling or it allows you to add back a card you want off of Sakitama. 3 The Himorogi where Stars Align is a soft once per turn to Ritual Summon a WIND Ritual from Deck and it can either add back a Ritual Spell or Spirit Monster that is banished or in GY or set a Stars Align across the Milky Way from your Deck when a WIND monster returns to hand up to twice per turn. It is perfect for getting out your small Shinobird Rituals, recycling cards, and setting up a Ritual Summon of a Shinobird on your opponent's turn. 3 Pot of Extravagance. 3 Pre-preparation of Rite. 2 Preparation of Rites. While you want to see some of your small Shinobird Rituals, you only need to see at least 1 because it is much better to have them in Deck for the Field Spell as they pretty much can't do anything in hand on their own. 1 Called by the Grave. 2 Tri-Brigade Roar. You can easily make Almiraj with Aratama or Sakitama which turns on Roar to send either Shuraig from Extra Deck to search a Winged Beast, send Bucephalus II to send Garura for a Draw, or send a copy of itself from Deck for a negate. 3 Infinite Impermanence. 2 Stars Align across the Milky Way. This has you reveal 1 Ritual in hand to add a Ritual with the same Level but different name from Deck. Then, it can banish itself to send a Ritual Spell from Deck to Ritual Summon. This immediately gets you a big Shinobird Ritual out during your opponent's turn to bounce stuff and set-up Amano-Iwato. You could play 1, but I like it enough to play 2. If anything, you can replace the 2nd copy with the 3rd copy of Roar.
For the Extra Deck: 1 Garura, Wings of Resonant Life for a draw off of Bucephalus II. 1 Divine Arsenal AA-ZEUS - Sky Thunder. 1 Drill Driver Vespenato. 1 Abyss Dweller. 1 Number 42: Bagooska the Terribly Tired Tapir. 1 Lightning Chidori. 1 Evilswarm Exciton Knight. 1 Tri-Brigade Arms Bucephalus II to send an additional Beast, Beast Warrior, or Winged Beast from Extra Deck when sent to GY. 2 Tri-Brigade Shuraig the Ominuous Omen to search a Winged Beast when sent to GY. 1 Mekk-Knight Crusadia Avramax. 1 Knightmare Unicorn. 1 Knightmare Cerberus. 1 I:P Masquerena. 1 Salamangreat Almiraj. Because the big Shinobirds are Level 8, you could play some Rank 8 monsters, but I think it is better to have them on field as they are already large bodies and they replace themselves with Tokens when they bounce themselves which helps with Ritual Summoning.
Side Deck isn't much: 3 Nibiru the Primal Being. 3 Alpha, the Master of Beasts which takes advantage of the fact that the Shinobirds are all Winged Beasts for more bounces. 3 Dark Ruler No More. The 3rd Tri-Brigade Roar. 2 Triple Tactics Talent. 3 Solemn Judgment.