我链接了以下两个表。 我想将书面数据从表单发送到两个不同的表并保存。 但是我也不能保存子表。

我是一个初学者，尝试了两天。但我不知道。 你能帮我吗？

鸟桌

• id
• 名称
• 品种
• 性别...

bird_condition表

• id
• ave_weight
• body_shape
• ... （bigint“ bird_id”）

#app/models/bird.rb
class Bird < ApplicationRecord
    has_many :bird_conditions,dependent: :destroy
    accepts_nested_attributes_for :bird_conditions,allow_destroy: true :reject_bird_condition
end

#app/models/bird_condition.rb
    belongs_to :bird,optional: true
end

#app/controllers/birds_controller.rb
class BirdsController < ApplicationController
  before_action :set_bird,only: [:edit,:update,:destroy]
  before_action :authenticate_user!
  before_action :correct_user,:destroy]

  def index
    @birds = current_user.birds.order(created_at: :desc)
  end

  def new
    @bird = Bird.new
    @bird.bird_conditions.build
  end

  def edit
  end

  def update
    @bird.update!(bird_params)
    redirect_to birds_path,notice: "upload"
  end

  def create
    @bird = current_user.birds.new(bird_params)
    if @bird.save
        logger.debug "bird: #{@bird.attributes.inspect}"
        redirect_to birds_path,notice: "create"
    else
        render :new
    end
  end

  def destroy
    @bird.destroy
    redirect_to birds_path,notice: "delete"
  end

  private

    def set_bird
      @bird = current_user.birds.find(params[:id])
    end

    def correct_user
      @bird = current_user.birds.find_by(id: params[:id])
      redirect_to birds_path if @bird.nil?
    end

    def bird_params
        params
        .require(:bird)
        .permit(
          :name,:breed_id,:sex,:birthday,:personality,:appeareance,:srarus_flg,:lost_day,:lost_place,:day_of_death,:image,bird_conditions_attributes:[
            :id,:ave_weight,:body_shape,:hospital,:medical_history,:medication,:insurance,:estrous_behavior,:estrous_personality,:bird_id
          ]
        )
    end
end

#app/views/birds/_form.html.erb
<div class="container">
    <%= form_with model: bird,local: true do |f| %>
            <table class="table-bordered">
                <div class="form-group">
                    <tr>
                        <th><%= f.label :name %></th>
                        <td><%= f.text_field :name %></td>
                    </tr>
                    <tr>
                        <th><%= f.label :breed %></th>
                        <td><%= f.collection_select :breed_id,Breed.all,:id,:name,include_brank: 'select' %></td>
                    </tr>
〜〜〜〜〜〜〜〜〜〜〜〜abbreviation〜〜〜〜〜〜〜〜〜〜〜〜〜〜〜
                        <%= f.fields_for :bird_condition do |condition| %> 
                            <%= render partial: 'form_condition',locals:{condition: condition}%>
                        <% end %>
                </div><!-- .form-group -->
            </table><br>
                <%= f.submit nil,class: 'btn btn-primary'%>
    <% end %>
</div><!-- .container -->

#app/views/birds/_form_condition.html.erb
                <div class="form-group">
                        <tr>
                            <th><%= condition.label :ave_weight %></th>
                            <td><%= condition.number_field :ave_weight %></td>
                        </tr>
                        <tr>
                            <th><%= condition.label :body_shape %></th>
                            <td>
                            <%= condition.radio_button :body_shape,:medium %>
                            <%= condition.label :body_shape,:普通%>
                            <%= condition.radio_button :body_shape,:slim%>
                            <%= condition.label :body_shape,:痩せぎみ%>
                            <%= condition.radio_button :body_shape,:bony%>
                            <%= condition.label :body_shape,:痩せ%>
                            <%= condition.radio_button :body_shape,:chubby%>
                            <%= condition.label :body_shape,:太りぎみ%>
                            <%= condition.radio_button :body_shape,:fat%>
                            <%= condition.label :body_shape,:肥満%>
                            </td>
                        </tr>
                        <tr>
                            <th><%= condition.label :hospital %></th>
                            <td><%= condition.text_field :hospital %></td>
                        </tr>
                        <tr>
                            <th><%= condition.label :medical_history %></th>
                            <td><%= condition.text_field :medical_history %></td>
                        </tr>
                        <tr>
                            <th><%= condition.label :medication %></th>
                            <td><%= condition.text_field :medication %></td>
                        </tr>
                        <tr>
                            <th><%= condition.label :insurance %></th>
                            <td><%= condition.text_field :insurance %></td>
                        </tr>
                        <tr>
                            <th><%= condition.label :estrous_behavior %></th>
                            <td><%= condition.text_field :estrous_behavior %></td>
                        </tr>
                        <tr>
                            <th><%= condition.label :estrous_personality %></th>
                            <td><%= condition.text_field :estrous_personality %></td>
                        </tr>
                </div><!-- .form-group -->

#error（log）
Unpermitted parameter: :bird_condition